It doesn't seem to matter what base (XP/2003 x86/x64) I use, if I integrate an update pack, USB drivers don't automatically install anymore. A side effect of this is that I can't boot and install from USB anymore either. If I Install it and plug in any USB device, the found new hardware wizard pops up. If I follow it, it just automatically installs the USB driver. Why does it not just automatically install the driver without the wizard?