Here is my list of troubles since I installed Leopard:
1. Parallels is now faulty, including freezing, no shared folders etc.
2. Printing to a Colour Laser Duplex printer on a network - duplexing doesn't work
3. Printing to an HP Colour Laser printer attached via USB - printer hangs and requires a hard reset when an item is printed with the collate option box checked
4. Pages (iWork 08) freezes when I want to print something
5. iTunes sometimes plays garbled music (with the 7.5 update a song stopped playing mid stream)
6. NDAS network disk drive caused the system to hang. I had to plug it in as a USB drive, then it crashed and I had to use Disk Warrior to recover it (since Disk Utility Disk Repair runs kept reporting the problem was 'fixed' but was not). I now use it as a Time Machine drive (and so far so good)
7. Power Point just froze on me, I had to reboot (this happens often now)
8. Restart or shutdown sometimes hangs after the desktop clears. I often have to push the power button to force a shut down, particularly when some program goes unresponsive, and especially when force quit doesn't work
9. Disk Permissions repair takes a long time; the progress bar doesn't indicate any progress (ps none of the problems above are the result of bad disk permissions)
10. Mail - after the system wakes from sleep, my message bodies disappear. I have to quit mail and restart the application for the bodies to come back
11. iPhoto hangs so I avoid using the product now
12. I'm frequently asked for my keychain password (despite installing the update, and despite not having any keychain problems according to the keychain utility)
13. Overall, I restart the system 3 or 4 times a day to recover from software hangs (since many programs don't restart after a force-quit)
To be fair, Leopard seems to have resolved iDisk (MirrorAgent) hang issues under Tiger 10.4.10, and I do like many of the new features. But this is a productivity issue for me. I switched from Windows because of frustration from similar kinds of things. I can't afford the downtime and am seriously considering downgrading back to Tiger and waiting a few months for version 10.5.4 or 10.5.5 (which is about the number of cumulative updates I think it will take for Apple to resolve most of these issues). Sorry, but Leopard simply doesn't live up to all the hype.
