I have this weird Finder glitch with 9.1 that I don't see in 9.04. I've reproduced it in both a G3 300 DT and a PowerComputing clone.
After upgrading to 9.1 from 9.04, launch an application via an alias or from Apple Menu items. The app won't launch until I click the desktop. Extremely annoying.
I tried trashing Finder prefs and rebuilding the desktop, which didn't help. So, it's back to 9.04 for me.
Anyone else see this?