I am having the same problem randomly for the past year. It has happened 4 times where my driver just stops working. I have used the vista 64 and xp and gotten it to work. Now all of sudden I come in and it wont recognize my scanner. I get someone in level 2 support to help me for free because I keep calling about the same issue.. he then spends 1 hour on my computer and STILL can not get it to work. I have a tech on the way here from Xerox to see what they can do. Anyone find an answer? I download the drive for windows 7 now and it doesnt show up after unzipping. very strange. Dont know if it is a windows 7 issue or what?? this is killing me workflow right now.
This had me pulling my hair out. I had to take a new box, loaded with Windows 7. Used to scan with an old version of Acrobat. Acrobat would just crash when it engaged the scanner. Purchased PapePort 12 from Nuance. I am now happily scanning and saving PDF's using the M20i and PapePort! $100 to solve thousands in headaches! Hope it works for you.