id summary reporter owner description type status component version resolution keywords cc guest host 1586 USB Support is intermittent Ryan "I installed 1.6.0(no previous versions tried), and set up a XP Home guest on a Vista host. USB controllers were selected, along with filters being made (for a usb software key-lock, and a usb printer). Initially, they worked normally, but as a few days passed, I started getting ""proxy not created"" errors, and then the guest would intermittently see - and not see the devices. Now the guest will not recognize the devices at all(not listed in the device manager). A harware search does nothing. A rollback to an earlier snapshot does not help. Trying to select the usb devices from the guest dropdown does nothing. Without USB, VirtualBox is useless to me. Other than USB not working right, this seems to be a decent VM....but again, I have to have USB." defect closed USB VirtualBox 1.6.0 fixed other other