Dear Manu, the code from http://jusst.de/hg/mantis (10.5.08) now works fine for the 2033 without the CAM (here Alphacrypt Light) inserted. When I insert the CAM, audio and video stop. I need to remove the CAM and I must reload the module with modprobe -r mantis followed by modprobe mantis Could you please look into the attached /var/log/messages file. Maybe it could provide a hint, what's still wrong. The verbose level is set to 3 (options mantis verbose=3) Thanks Ciao Ruediger D.