I just upgraded from a ScanJet IIcx (SCSI) to a SJ 6350 (USB). The scanner and ADF work great with the HP software included. I am able to "scan to" or scan and "drag and drop" to Word, Excel, OmniPage Pro 10.0, and Ulead PhotoImpact 3.01. My problem is that when I try to scan from within these programs along with OmniForm 4.0 I get an error message stating that TWAIN.DLL can not be found in the Windows folder or that the scanning source could not be started. the TWAIN.DLL file is definately located in the Windows folder. What else do I need to do to get the scanner to work from within the applications. I did not have this problem with the IIcx.