Well, on one computer it runs fine. On this one it worked OK when I did the EVAL for a lil while then quit. At the time I thought the EVAL period was up so I didn't worry about it. Then I purchased ARC536Basic and it couldn't find the scanner but Sentinel could.
Talked to Grommert about the problem and the way I got mine to work on this WIN 7 64 Bit computer was to run it as Administrator. Note: the other Win 7 64 Bit computer runs it fine without running it that way. Give it a shot and let us know...