wow. that's all i can say. so far it has been 99% unstable and unusable. what happened to coherence? any time i put a vm in coherence it freezes and activity monitor shows "Parallels Desktop" and "Parallels Service" locked up and non-responsive. i have to force quit both, if i'm lucky enough for my mac to be responsive enough to do that. for no reason at all suddenly parallels tools is no longer installed and i have to reinstall it. idle cpu usage seems to be higher than in parallels 3... i'd suggest putting p4 back in the oven because it's certainly not done yet. was this release rushed to grab some attention from the other co's recent release? if so p4 may indeed grab some headlines but certainly not the kind parallels is looking for. i never thought i'd say "parallels 3 is pretty stable." time to downgrade.