Since I upgraded from Parallels 4.0 to 5.0 the sound within windows vista is gone. When will Parallels fix that problem? Which file or device is missing? I'm from germany. Therefore the error message is german. Nevertheless the errormessage is itself helpless, because it doesn't know which file or what device is missing? Hardware: MBP 17, 4GB, 320 GB HD Software: OS X 10.6.2