Here is what solves the problem for me as you said.
Works great now and CPU load ? I dont know of besides im on a 2.0Ghz system so dont care about it.
Anyway here is what happend.
http://forum.bsplayer.org/viewtopic.php?t=5868
It seems RBG aint as good quality as "overlay mode 1" but I have to live with it untill they fix it if they ever will. I hate when the picture on the TV zooms in.
Bah :/
Cheers mate