dopo aver aggiornato a Mac OS X 10.4.10, quando voglio connettere la pen drive dentro XP mi dice

USB device you are trying to connect to the virtual machine is being used by another application. Close that application or unplug the device and plug it again. Then try to connect the device again.
ho provato e riprovato, ma niente. Ho provato a riavviare Parallels, riavviare il Mac, ma nulla...

consigli?