Yesterday I went to scan a business expense reimbursement receipt and the ScanSnap Manager software crashed on me. I rebooted the computer, but it crashed again.
Thankfully, I was able to fix my problem in under 5 minutes. Apparently there is a conflict with the old ScanSnap Manager driver software and Windows 7. The Fujitsu website has a quick and free ScanSnap Manager software upgrade available which will get you back to scanning in no time.