Unable to Overclock with Rivatuner

[Zarathustra[H]]

After launching Rivatuner it complains that no compatible driver has been found.

Specs are as follows:

Shuttle SX58H7
Intel Core i7 920 @ 3.7Ghz (Ram@1480mhz)
Nvidia Geforce 9400GT (just trying to squeeze a little more out of this budget card until I get the replacement)
Windows Vista Business x64
Nvidia Forcewear 190.38 drivers.

Any suggestions?

 

[Zarathustra[H]]

Hmm. I tried the workaround mentioned here but replacing 18585 with 19038, but it didn't work...

Maybe I'll just try older drivers.

Also, I heard there was a problem using Rivatuner on Vista x64 with Windows Driver Signing on. I have been unable to find a decent guide on how to permanently disable this. Does anyone have any links?