Why does 8.1 drivers make my1950GT AGP perform badly

[UnrealChrisG]

I just updated from the drivers v 7.10 to 8.1 and I notice a HUGE performance decrease with all of my games, is there a reason for this? I was thinking that maybe I got a virus right around the time I updated the drivers because now I cant even run NFS Pro street with out lowering the resolution to 640x480, Before I had it at 1280x900 with high setting 4xaa and got more fps than I do now with it lowest at 640x480!!! What the hell is up with that? Should I downgrade my drivers back to 7.10? ty

My specs are
C2D E6400 @ 2.13GHz
ATi 1950GT 256MB AGP
2Gigs DDR2 533

 

[soundefx]

What I would suggest you do is update your anti-virus program, run a full scan and see if you have any viruses.
If you don't, then go back to the older drivers that worked good for you.

 

[UnrealChrisG]

Well, there was no virus's, so I guess I'm just going to downgrade my drivers now, ty

 

[hcforde]

Did you clean out the old driver first, or did you just install the new driver on top of the old driver?