It's been a while since I last watched TV with my laptop but somewhere along the line I've lost the power to watch DVB broadcasts in fullscreen. I'm using Kaffeine (xine engine) but most of the video output drivers seem to crash X or run slow.

I didn't put any thought in to it previously and it ran fine. Is there a preferred driver that I should be using or any other reason why I might have lost any hardware accelleration?

The hardware is a Macbook pro which has an ATi X1600.