FSRepaint no longer works

I have recently upgraded my video card from an FX5500 to a 7600GS which also required a driver upgrade. Since doingthe driver upgrade FSrepaint no longer works. I get error message no suitable 3d device found. I also had the same problem with my FX5500 card if i used a driver after version 84.21 unfortunitly the 7600GS will not work with the 84.21 driver. It requires a more up to date driver. Any ideas PLEASE????????