The worst problems I've had with Leopard have to do with certain apps behaviors with Spaces, and that Time Machine doesn't seem to backup according to schedule.

With Spaces, if I have Photoshop CS3 assigned to a space (#3, for example), clicking the Dock icon for Photoshop when I'm in another space won't jump me to space #3, it will open a new copy of Photoshop in the current space. That's quite annoying. (Cmd-Tab to switch to Photoshop behaves properly, jumping me to the right space.)

I found a hack online that modifies the Time Machine backup interim. I changed it from 1 hour to 3 hours, but it seemed like I changed it from 1 hour to never. I'll have to undo that.

Otherwise, Leopard has been rock solid and I have no problems. I can't believe how fast my iBook G4 1.33 is now that I did a clean wipe of Tiger and install of Leopard.

I upgraded to Leopard and now I can't log in to my computer! After a couple hours of hold time on tech support I've learned that users who had passwords of 8 characters or more have experienced this. I have logged a total of 5 hours on tech support and there is still no fix - given the incredible wait time for techs recently, I am wondering just how pervasive this logon problem is!

Just another dull boring upgrade for me.

First I de-installed APE even after making sure I was using the current version since I didn't feel like dealing with any potential issues. Then I used CCC to back up my files on an external HD (which was for the first time a USB2 drive rather than firewire - note to self, it is worth the couple of extra bucks to get a dual i/f drive). I inserted my Leopard DVD, ran disk utility to make sure there were no corruptions, did a simple install and after some period of time (I went off to do other things, but it was less than 90 minutes) I came back to a log in screen. I typed in my password and I had Leopard. Pretty much immediately, software update told me I should install some updates, I let it, restarted and I was done.

So far it is uneventful. It seems Safari 3 plugged the memory leak that was present in v2. Leopard also seems to handle memory a bit more cleanly than Tiger and I can report a small but real speed increase. One note, I use the Fan Control pref pane, and the version I was using did not work with Leopard - there is an upgrade. I noticed this because my MBP was getting a bit warm and there was no fan noise present. I opened the pref pane and saw nonsense temps. After I installed the updated pref pane all is well.

I don't use Apple computers, but I work at a university campus store that sells and supports them. We've sold probably 50+ copies of Leopard and have only seen one complaint. The guy said that, as he was trying to install it on his computer, the disk kept automatically ejecting. He called Apple and they told him it was an issue they were aware of. I thought it was an interesting little bug.

I believe that a lot of the functions that are now tied to our desktops will be in our handheld devices, causing your concerns to become moot points in the future. Google's new Gphone will make all media more ubiquitous, and that will really open the floodgates. The NewsVisual article on Google's Open Handset Alliance http://www.newsvisual.com/newsvisual/2007/11/google-and-moto.html implies that it's really personal connections among business leaders that determine future success in the competitive marketplace. But consumers can also benefit from the new products those alliances spawn.

I am unable to access Address Book. Still unable to find a
'work around'. Yet, if I submit a new posting in Mail, the program is able to post a correct email address.

I found two annoying bugs.

In Tiger, you could search for files or the content of a document within a folder. Now, Spotlight kicks in and displays the related contents for your whole Mac. You then have to select the folder to restrict your search. Something that was a one-click-process now takes two.

When asked, an Apple spokesman called it a 'feature'. (They've learned that from Microsoft.)

Second, the control panels in System Configuration don't show completely. The right side of each screen can't be seen. So sometimes I cant press O.K.

MT's login problem: I too had your "logon problem" when I installed Leopard on my MacBook Pro during a trip to Phoenix. It seemed that the installation had changed my password & I could no longer log in. Fortunately, after 2.5 hours, the Phoenix Apple Store Genius Bar employee "Gabe" was able to get me in. He said the password was not changed, & I think he said I was instead deleted as a user!? (I did not understand)

Although I was able to again log in, every time I went to save a file (new & just updating old ones) I would get a dialog box saying I did not have permission to do so. The work around was to "Get Info" on the file (Finder > File > Get Info) and then go to the bottom & add a user (Me) to the "Ownership & Permission" for that file. I think there is also a way to do this wholesale in the Terminal (a Unix command that slips me, but I think it is "chmod"). However, this is not why I use a Mac!

I spent 5 days trying to make a copy of my laptop's hard drive (using Disk Tools > Restore & Disk Image) to reinstall Leopard. After hours of thinking the disk imaging would fail! (I don't understand this either, but I suspect DRM issues.) "Backup" (free with a .Mac membership) was my fallback, and I was able to make a backup of 99.9% of the info on the disk. I then did a complete erase of the HD and brand new installation of Leopard. Things are so far working well, and I have a lot more hard disk space than before!?!

Was this Leopard upgrade worth it? Using and programming Macs since 1985, this has been the worst Apple experience I have ever had! Despite the longest gestation period in Mac OS X history (2.5 yrs), this version of Leopard is clearly 'Beta' or Microsoft quality level. I would advise most people to hold off installing it until Apple fixes the many, serious bugs.

Having said to hold off on upgrading to Leopard, let me add that Leopard is extraordinary software, and I am not referring to the annoying, hard to see/read, and wasteful eye-candy, e.g., translucent 'onion skin' menus & reflecting Docks. Bundled programs such as "Time Machine" & Leopard's 'under the hood' technologies are going to pay huge dividends to Mac users and Apple, once they have produced the 'fit and finish' we expect from them.

I installed Leopard Oct 30th.
With the exception of 1 item I like the new features.
The one item I do not like is, that although my Airport Extreme Card test as "Working" when I use the Disk Utility, and when I am back in the user mode, it can see my Access Point but it will not under any circumstances connect to the Internet.
I have tried all the possible solutions shown on the Apple discussion forum pages without success.
I have the: Model name: 1.2 GHz. PowerPC
Model Identifier: PowerBook 6,5
786 MB of memory.
Any suggestions please?
Apple does not acknowledge, anywhere that I have seen, that this problem exists.
Going back to Tiger X.4 and the card works normally.

I have a three year old G4 with 2gb of RAM, 4 interal and 4 external hard drives. Upgraded to Leopard as soon as I could buy it. Major remorse! Upgrade went smoothly but then noticed iTunes would only play jerkily, if at all. I opened activity monitor and it indicated my 2gb of RAM was being slowly eaten even when the op sys was just sitting there idling. Each time I reboot, it finally consumes it all (during the course of about 30 minutes) and locks up. I boot up off the second drive (with Tiger) and all is well. I've spent hours with tech support (twice being disconnected after 90 minutes) and methodically removed cards, programs, externals, etc until there's nothing left to be causing the problem but the opsys. Finally I was told by a tech, "If I were you I'd just use Tiger until we can get it fixed." Glad to get an honest recommendation, but I suspect a refund will be slower in coming. Sad day at the Apple Corps.

I don't think it's fair to compare Leopard to "windows at it's worst" from 4-5 years ago. You can't just give a fair comparison between MS and Apple. Apple is building an operating system for today (and for the next couple of year), in a world that has seen it share of security holes and exploits by 2007. If Vista had this type of security whole with release, I would hold MS accountable for not learning from it's (and industry) mistakes. I just don't understand how you can't give a fair evaluation of Apple without taking an unfair dig at MS.

i got a copy of Leopard on disc w/ my new MacBook & have loaded it there & on my previous Macbook(sold to a cousin) & a clean install on an iBook G4 & have had no issues whatsoever. the only "issue" i had in transferring from old MacBook >new MacBook is re-entering the serial number for Final Cut Studio 2 & yes i can run Motion! i must add that the only 3rd party software i have is MS Office 2004, Toast8, Flip 4 Mac & some Gee Three plug-ins for iMovie HD6. i would need a portable drive for my MacBook to use Time Machine as the ones i have are for FCS2 media assets. it's always been foolish(if deliberate) or unfortunate(if by accident) to break the connection when transferring data from 1 machine to another, the 'puter/Apple tells you this just before you do a Target Disk transfer, so i don't consider that a bug & to ensure compatibility w/ data transfers using ext. FW drives or flash media i have all my Macs running the same version of the OS & apps, so far it's worked well. today i'm gonna load it on my old 17" 1 GHz FP G4 iMac & don't anticipate any issues there either. so far i'm liking OS 10.5 a lot. & Rob, really is anything Apple's released in the last 3-4 years is as bad as MS "Windows @ it's worst", a bit hyperbolic don't you think? as well as abdicating the user's responsibility to insure security?

Thank goodness for the 2,000,000 Leopard "Beta Plus" testers.

I'll stay with Tiger OS X 10.4.10 and update to 10.4.11 when it arrives.

Leopard is a couple of updates away from my iMac.

I have tried to install 10.5 several times on my g5 dual 2ghz system but it is not working. The main problem is iLife 08 iTunes and iPhoto will not open their main windows, and the the time machine backup fails on its first backup, even with most of the drives and all of the system folder turned off. I have tried both the standard backup and install and disk format and install methods getting the same problems.

I have that PUB SUB agent request for login every 15 minutes. I fixed it by dragging it to the corner and forgetting about it! The worst bug now is apps wont load and I must re start - this happens twice a day - I know its going to happen when I cant see the logos on cover flow. ALSO...lost addresses in address book, kinda, my phone syncs, numbers and dates, but nothing in the folder on address book where they are supposed to be, weird. ALSO, BLUE SCREEN OF DEATH near miss, after a number of re starts it fired up.

On November 8th I commented that I was unable to connect to the internet from my PowerBook through the Airport Extreme card after installing Leopard.
Since then I have had long waits and discussions with Apples Help desk. Everything that they suggested did not correct the problem.
After one test late Saturday the technician suggested that the problem could be the router through which I was trying to connect.
I went on the Verizon DSL support website to see if there was any information there. I was directed back to a URL that took me to the Apple discussion site and there I found that in mid 2006 Mac users with G5 Power Books could not connect through their Routers. Some commenters had purchased and installed a different Router and achieved successful connection.
On Sunday I went to two other locations and connected to the wireless networks with my Airport Extreme Card immediately.
So the suggestion from the Apple support desk proved to be correct.
So I am back to being pleased with Leopard.

When I installed Leopard onto two of our computers at home, I got the"dreaded" blue screen. A tech specialist at Apple walked me through eliminating the conflicting application and everything is now OK. He also walked me through the process on our third computer and that went off with no hitches at all.

I installed Leopard from the disk that came with my new iMac (Tiger pre-installed). Everything worked smoothly, and I was especially impressed with Bootcamp for the smoothest install of WinXP I've ever had on any computer.

One annoying problem is that I get unwanted pop-up control windows whenever I try to left-click on the buttons and text of MS Word documents. It's a bothersome click-fest trying to find someplace that will let the cursor do the job I want. I think it happens too much in Safari too, but I'll need more experience to be sure. Hope they fix those issues soon.

I have all sorts of problems with Safari failure and Mail failure. Never had these before. Frequent failure on web pages. Mail will fail when trying to open regular email. I wish I had stayed with the old system until the bugs were worked out of this one. Crap!