My road to Snow Leopard was a bumpy one. I was given all sorts of bad advice at many forums across the internet, mostly by snobby people. Finally found some helpful adults at the Apple discussions forum who suggested a total re-install of everything. Obviously my upgrade install never worked, as CS4, Quicktime, system dialog boxes were crashing, and MS Office 2004 never opened. Next I tried clean install and migration assistant. That didn't clear up any of the crashing problems either. The third time did work though, and if some of you are experiencing the same crashes, please take note. You'll need to build up the system back from scratch. Yup, no upgrade, no migration assistant, you'll need to re-install everything with a brand new user account. That's how I finally got Snow Leopard to behave with all my apps, extensions, and utilities. Photoshop CS4 works properly now, MS Office 2004 opens, and no crashing on the system dialog boxes. Eye One Match calibrated my displays with no problems, despite its PPC nature. So now I'm a happy camper, my $29 didn't get wasted, but it wasn't an easy way to make OS X 10.6 work. I do wish Apple had put out some suggestions that a total re-install might clear up some of the bugs. So now I'll just get back to work, because everything works again!