New Video Card. Loading Times Insane + Crashes

[Coldkilla]

I upgraded my PC from a 6800GT AGP card, to a 7900GTX card. Before, all of my games worked pefectly. Now with this 7900GTX my preformance is horrific.

Some games, the load times take over 5 minutes, compared to the average 5 seconds. Once the games load (if they even get to) the game crashes and for an example the game "Operation Flashpoint" says this:

http://img150.imageshack.us/img150/8260/untitledul1.jpg

I have upgraded my GFX drivers yes, infact I've even reverted to older GFX drivers (Also the same drivers that were previously on my PC with my older video card). I went to my motherboard's website: ASRock.com and downloaded all of their ULi M1695 SATA 2 Drivers for all hardware components. I've also downloaded the latest BIOS update from them.

My Specs:
Specs:
Processor: AMD Athlon 64 X2 4200+ Manchester 2.2GHz Socket 939
Video: 7900GTX
RAM: GeIL Value 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel
Mobo: ASRock 939Dual-SATA2 Socket 939 ULi M1695 ATX AMD
HDD: Seagate Barracuda 7200RPM 320GB
Monitor: BenQ FP93GX Black 19" 2ms LCD
Power: FSP Group (Fortron Source) AX400-PN, RoHS, 12cm FAN, version 2.0, 2 SATA, 20+ 4 pin, PCI Express, 400W

======================

I'm so lost..
--Update: another game displays an error after crash: http://img155.imageshack.us/img155/5859/untitled2td9.jpg

 

[btcomm1]

Do you still have the 6800gt? Can you test it to see if the games run the way they used to? If so I'm thinking maybe you have a bad 7900gtx.

 

[JPH1121]

Did you uninstall your old drivers, restart, install new drivers, restart before testing? You might be having a hardware conflict from improper installation.

 

[Coldkilla]

Just did a system format. All works fine now Ty

 

[themisfit610]

Probably driver issues