Stas,

Have you tried looking at the ATI web site for any Linux drivers? They are ( usually ) pretty good in Linux, one of two msnufacturers, that I have heard, that seem to think that people who run Linux might need video drivers. ( the other manuf. is NVidia, which is what video I have )

Another resource, have you tried HERE ???

Try typing ati 3d prophet 9600 pro in the above box, labeled Search Knoppix.net

If you dont get any search results, try decreasing your search criteria, like down to ati 3d prophet or ati prophet

If you have a popular card, you will get a few hits, if nothing happens, try just ati, I used to have a ati all-in-wonder ( I think thats the name ), dont recall how I got it going in Knoppix, it has been more than a year since I used it, I think my resolve, was to get the drivers from ATI, but dont quote me on it