I've just bought a macbook and installed parallels and windows xp. I had the other problem with the usb that was solved with the update. My problem now is when I use the wizard to install my usb device I get this message: There was a problem installing this software, US Host for 1-Wire Microlan. This device cannot start (Code 10) I've tried uninstalling and reinstalling and restarting. This usb device is a "key" that I need in order to run software. Any advice would be appreciated.