I found a small but annoying bug on 4.0.1:
when I open a composition that need relocating all files, I relocate all files on first deck.
when I move to other deck and relocating files there, it jumps to the first deck.
very frustrating when you have lots of decks and the original files is in a lot of folders...
4.0.0 dont have this problem...
EDIT: Another thing that i just found out, when i hit command+Q to quit and then cancel, it Quits!

macbookpro 2.66 I7
osx 10.6.8