I've read the instability threads but haven't seen anything specific to my issue. I've installed and uninstalled Parallels and tools. VTx on/off. I have fully updated Parallels and Windows XP. If I put any USB drive into the USB port Parallels seems to think it is available, but it is not visible in XP. I've tried 3 different manufacturers USB drives. In troubleshooting I notice that in Device Management that the USB controller drivers are not installed. I've tried reinstalling tools and still it is missing. Worse if I have a USB drive mounted in the guest OS when I try to access Device Manager in XP I get a bluescreen/panic. Anyone else with this problem? Can anyone confirm that the USB drivers are not present for the Air so I can stop trying to fix this? If there is even a beta available that attempts to do so I would like it. Parallels is hard for me to use as I do use USB drives