New video card, games don't work

[matas]

Yeah, so what the hell is going on with it? Obviously I reinstalled video drivers after I put new one in. I installed bioshock, and I get error about new hardware in use, the "Don't Send" one. Each game does the same thing when I try to load in the main menu.

 

[taltamir]

I can only suggest that you try reinstalling windows, but I do so with trepidation.

 

[lyssword]

in "device manager" turn on "view" hidden devices and uninstall (if there is) anything that's x800-related, see if that helps