Dear List, on irc, I talked to Jarle, who had the same problem that I had before: Some printer drivers don't work for cups on tjener, but do well if you install them on a workstation or ltsp server. This leads to the conclusion, that there are packages included in X11 that are needed for some filters (maybe font rendering or whatsoever). Is there any deeper insight into this matter, yet? Regards RalfG