Ever since I installed a nvidia graphic card in my PC (Asus 7600 GS) I have troubles recording video with WinDVR. When I hit the rec button the video goes black and white. However the recording itself is in color. I've looked everywhere, reïnstalled everything I could, checked cables. Nothing worked. I'm using a Hercules Smart TV 3 PCI tv tuner card.

Anybody any ideas? Thanks ahead...