I've just installed an nVidia 7600GS and i get an error on the WDM video capture device:

nVidia WDM Video Capture (universal) - Failed to start error 10

Anyone know what gives with this and how to fix it. I've done the usual thing of downloading the latetst drivers etc, even for the wdm....

Thanks

Looks more like a Software problem but:

What OS are you using and did you disable anything on that OS?

I use to have this problem on GeForce 5 series when that had this driver to install.
It was something like you had to uninstall the driver, then delete the files in the INF directory in C:\Windows that corresponded with that device. then Install the latest ones.

Was something weird like that, with me sometimes it woudl work, then all of a sudden fail to start.

“Detonator remover” from guru3D.com, try that, could be indeed that some part of the driver is still in use if you used a nVidia card before.