I've used Nikon Scan for years, but with mixed results with traditional b&w. I haven't used Vuescan much so far, but I want to give it a fair try. However, I can't figure out, for the life of me, how to have the program automatically generate successive numbers for batch scans. It keeps asking me if I want to "overwrite" existing files with the same name. I'm sorry, I just don't get it. And the "instructions" are anything but helpful. My scanner is Nikon LS 4000, and my system is Mac OS 10.3. I'd greatly appreciate some help. Thanks.