I recently installed a GeForce 8500 GS now my games will not work HELP

[Kurth]

i recently installed a GeForce 8500 GS now my games will not work. every time i try to start a game like rome total war and such. it tells me theres an unspecified error and will now exit

 

[bumnut53]

I have to ask, have you installed the latest drivers from the Nvidia website?

 

[Kurth]

just the install off of the instal disc

 

[Kurth]

and its a 8400 not a 8500

 

[Kurth]

just finished instaling the drivers still not working

 

[13thmonkey]

+1 remove old install new, even if going from nvidia to nvidia.