With beta 5 I have experienced the following symptom. After resuming a suspended VM (WinXP). The first time the VM attempts to play a sound, (e.g. Quicken 2004 startup sound), the VM hangs and uses >100% CPU (20" iMac). Parallels is still running and I can attempt to send a Ctrl-Alt-Delete from the Parallels Menu, but nothing happens within the VM. I eventually have to reset the VM. Hope this info helps track down a bug. don