I installed Snow Leopard on my iMac on Friday and everything went smooth. Figured I go onto upgrading my MacBook Pro. This didn't go so well!
I also had a problem with color profiles. After Snow Leopard installed, the screen was washed out & had a strong blue tint! I tried a calibration, but it really didn't help much. It was defaulting to the "Display" profile. It looked better with the "Color LCD" profile, but that only applied after I would log in. So I'd have to put up with the crappy look in the login screen, and I'd have to change it manually in both my kids accounts. Tried to delete the "Display" profile, but after a reboot, it reappeared again as the default.
I decided to use my fresh SuperDuper backup, and restore back to 10.5 for now. I'll just have to use 10.6 on my iMac, and hope Apple does something to fix the color profile problem that some Macs seem to have with Snow Leopard.