Originally Posted by Teny
That's weird, I never had that problem when I was folding with my 5870.
The clients tend to get really picky. I'm guessing that your 5870 is reference and sniperviper's isn't, but it could be pretty much anything. I had to use -forcegpu nvidia_g80
on the second core of my 9800 gx2 but not the first...
EDIT: In case anyone doesn't know, you can add the flag to the shortcut placed in your startup folder. Just right click it, properties, then add it in the target box after everything (including quotes if applicable).