Hello Petri,
Since you have already been there once, you might just go back... to the German VDR wiki that is: http://www.vdr-wiki.de/wiki/index.php/Remote.conf
Yup this is what I have done.
I added the line :
LIRC.PrevCh PrevCh
And VDR says there is error in remote.conf...
Did I missed something ?
/Xavier