Thanks for the Advice however in the Bios my fastwrites are enabled and my AGP Apeture Size is 128Mb, no problems in DXDiag at all.
Also other games such as Max Payne and SOF II run no problem. If it was the card overheating then i think id notice it with all Apps.

This Issue could well be Software, I have also tried CAT 2.5 and 3.1 Drivers and the outcome is the same - PLEASE HELP anyone..

Cheers - Magpie