This doesn't happen to me every time, but enough that I stopped suspending the VM most of the time and just put the Mac to sleep, which has resulted in no VM crashes.
It also seemed to be related to suspending the VM when it was on one monitor, and then resuming on another monitor. It seems to me the Parallels video driver is the weak link in the chain. It's slow to redraw sometimes after a resume when you resize the OS window, and in this scenario just outright crashes.
Last edited: Apr 10, 2007