Media center shows live TV fine.  However, when I record something and attempt to play it back, the sound plays fine but only the first frame of the recording shows.  The only thing that fixes this is by pressing 'pause' and then 'play' and the show then plays fine.

Any advice appreciated.  I have an AH 3650 graphics card and a DVB-S tuner (although I have also tried a DVB-T tuner and the same thing happens).

Thanks