we use office 2003 document scanning to scan using the TWAIN Driver for the Ricoh IS330DC and the scanner appeared in the scanner list with no problems, until office service pack 3 was installed via windows updates.
We also have some remote users with Brother and HP printers who cannot see the scanner in the list either.
We have uninstalled office and reinstalled using an SP2 MSI and it starts working again. If windows updates to SP3 again it stops.
We have also created a new MSI with Service Pack 3 and installed as one package and this fails to show the scanner also.
Any more info required please ask, and thanks.
James