Registry conflicts - unable to install on win2000

9 hours of wasted time. I'm a computer sales clerk at a major store here in Boston, and have installed many, many scanners and other devices over the years, — but never so impossible as this one! Spent over a half hour waiting on the phone (at my expense) just to speak to tech support. They said I needed to uninstall and try again, but, evidently, Visioneer doesn't have an adequate uninstall utility. Tech support pointed me to a web page with a book-length manual on re-editing many of the registry keys just to uninstall it! I printed this out, and took it to a third-year computer programmer student, who said it was much too involved for his capabilities. In other words, on my machine, you need to be a high-level programmer to get it working. (On the other hand, it did work okay on another machine, of my friend.) The tech support said this problem was common. So, I don't recommend Visioneer. They need desperately to imporve both their installing and uninstalling software,