I work in Brazil and I have found that there are alot of scanners out there that are sold without Microsoft certification or logo. The bigest problem I come across is when I have to uninstall/reinstall due to some failure or file corruption. The uninstall appears to go fine, BUT, it in fact leaves all itīs original (corrupted) configuration data in the registry. Usually MS Logo certified hardware has less problems, but the scanning software still has. Try reinstalling the scanner and testing it gets your error message, "Your scanner is being used by another Caere application, please wait till the process is finished" or similiar message. If you are unfamiliar with working in the registry, try one of the freeware products like JV16 power tools (www.jv16.org) or Norton WinDoctor, part of Norton Utilitys or another to check if this is your situation. Deleting the configuration data usually restores the function of the scanner for me, of course it goes without saying... backup, backup! Howard Rubin in Fortaleza Brazil The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com