We have a Canon Lide 50 scanner with the cable, but no documentation. When scanning a picture, It seems to go fairly slow. Is this a function of it being an older scanner, or does it have something to do with the speed of the USB cable? I looked at some old postings here about determine the USB speed (http://www.computerhope.com/issues/ch000602.htm
), but can't figure it out and am not sure if that's even related to the slow scanning issue. The computer is brand new. Any ideas?