[geebee27]

Thanks Pault63, I'll give it a shot and see what happens.

The machine is running a Geforce Go 7600 and I think it's got 256M of memory.

THe machine itself has 1G.

I did download the trial version of Nvidia's PureVideo which made a significant difference. However it still jerks a little.

I contacted Toshiba suppport to get their opinion; the seem to think I may have a tuner card fault. Not sure about that......

Thanks again for your advice.