Beta 4 was pretty good, I never had a panic or crash with it. Beta 5, perhaphs due to the new hardware support for USB, is very unstable. I''m afraid to run it much! Win2K VM will reboot the mac immediately during windows boot. WinXP VM will run ok, but try to suspend it and poof, a reboot. It's an immediate reboot, as if you pulled the power cord and plugged it back in. This is consistant, every time without exception. Mac Mini core due, 2Gig ram. Guests: Win2K SP4, WinXP home SP2. Each VM has 256M ram.
Beta 5 unstable I wouldn't call it "very unstable" - but I have rather regular BSOD :-( Almost every time I try to shut down XP inside the VM. Occasionally when I try to start the VM. And I've had a couple of hard hangs - I start something in the VM that accesses the network (that seems to be the one common thread) and Parallels starts using 100% of one core (looking at 'top' in a terminal on os-x) and nothing happens anymore. Only a reset helps. It's a beta after all, but I am certainly looking forward to the more stable beta 6 Dirk
I have the same problem (BSOD after shutting down the VM), but i have the feeling that it is only happening when the guest OS is running in full screen mode. Sergeij