As far as I know, this particular framerate problem occurs with triplebuffering enabled. Try setting d3d_triplebuffer to zero, just to see what happens. Not sure whether the others already mentioned this - sorry I didn't have the time to read the whole thread I'm in a hurry... Hope that helps, anyway!
Formerly known as The Matrix - ICQ 170408644
I've been here for much longer than most people think. So where's my "Expert" status?