could someone please point me in the right direction of drives for my nova-t 500.

I have a hvr-2200 in my win7ult machine working fine with w7mc, but when I plug in the nova-t 500 and load the drivers from here

http://www.newmagic.com.au/Support/Hauppauge_Vista_Drivers.html

MC loads as if it is running on a pentium II. It's terrible. I removed the card and still had the problem, so had to plug the card in, boot into windows and do an uninstall of the drivers in device manager.

Any help would be much appreciated, gotta get some extra tuners in.

On another note. Does everyone get the slight jitter when changing channels?