orbiter remote for TV- cannot stop

Hello friends,

yesterday I put a WINTV Nova-HD-S2 in my box. I followed the wiki to set it up with VDR. Initially I had some problems with the firmware, but I finally got it all to work. Now the only problem I have is, that I cannot stop the TV-playback. Pressing Power on the remote doesn't work and tapping the off-button on the orbiter-remote doesn't work either. So far the only way to stop it is to start playing a movie.

edit: I did have some problems with the scanning. I downloaded the mentioned ini-file and tried to scan. I always got parsing-errors for every entry in the ini-file. So I checked and found a channels.conf for Astra-Satelittes. However I would like to scan myself.