Hi Dear SL users: I use to have SL3.05 (CERN version), then I upgrade to 4.0 (GENERIC) every thing was OK, except the printer I got the following message when I try to send a test page to the printer: Hubo un problema enviando Página de prueba de CUPS a la cola 'printer' : lpr: error - unable to print file: server-error-service-unavailable What should I do? It seems a conflict between two lpr/lpd version, how can I fix this problem? I am a novice to Linux. Thank you for your help -- Kenneth Roy Cabrera Torres Universidad Nacional de Colombia Sede Medellin Tel 430 9351 Cel 315 504 9339