I've had two experiences in past week (and a friend has had one of the same) where my WinXP Pro and Parallels Desktop suddenly disappear. Just like I hit Cmd-Q and quit the application--except I didn't (for sure). There is no "unexpected quit" message. I do get the report to Apple pop-up. In the Library crash log it shows: OS Version: 10.4.9 (Build 8P2137) Report Version: 4 Command: Parallels Path: /Applications/Parallels/Parallels Desktop.app/Contents/MacOS/Parallels Parent: WindowServer [87] Version: 2.5 (2.5 Build 3188.0) PID: 595 Thread: 0 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000000 Any ideas? Rich MacBook Core 2 Duo 2 GIGs ram