Device manager showing different gpu

[Guest]

Hello,
For some reason Device Manager is showing An 8500gt under display adapters instead of 8400mgs which is what I really have, It's causing all sorts of problems I think I may have done it without noticing, Note: I use Rivatuna---- Any help would be apreciated

 

[Herr_Koos]

Download and run this handy little tool:

http://www.techpowerup.com/gpuz/

It should tell you exactly what you have installed. Also, make sure your drivers are up to date.