drb: I just wanted to thank you for the info on setting up a printer. I'm new to Knoppix, and I'd been banging my head on the desk trying to get my Stylus C60 to work with it until I came across your post.

Jorge: are you using the Add Printer Wizard program you can access via the K Menu, or are you using the Printer Manager you find when you go to http://localhost:631 using Konqueror or Firefox? I was able to find a driver that worked by using the localhost:631 method (called "Epson Stylus Color Printer", IIRC), but the Add Printer Wizard program in the K Menu still gives me the error message you quoted.