Visioneer 9420 Code 39 error?? Just installed NEW Visioneer 9420 scanner. Scanner not found. Checked device driver and found this error msg: "Windows can not load device driver for this hardware. It may be corrupted or missing. (Code 39)" Did several uninstall/installs to no avail. Checked PC for virus, adware, works, & nasty stuff all ok. Thanks, HW