9800GX2 Woes

[Razer]

Gidday,

Hope some bright spark here can help, I've recently done a system upgrade and part of it is going from a 8800GT to a 9800GX2...

Now, I've downloaded the latest drivers from Nvidia and the latest graphics .dll's for Il2 (March 0, and even used the Nvidia control software to tone it down to one GPU but still I cannot get Il2 to run properly...

At the moment I've had to revert back to DirectX, which doesn't really satisfy my need for Eye candy... The game runs all jerky like, and for the life of me I just cannot get it to work correctly...

• I've tried the stock Drivers that came with the card = stutters

• I've tried the latest from Nvidia = also stutters.

• I've tried the latest from Asus's driver support site = still stutters.

I've tried all the .dll's that I have in the '5' pack, all to no avail, including the march releases which were the best for the 8800GT... I don't want to send the card back for the GTX260 or GTX280 - this runs fine for everything else, just not Il2. Even when I have it set to run on only one GPU - it still stutters, the reflections on water flash, effects are square etc etc... But when I drop it down to DirectX it works fine. Now, as this is under XP - I cannot install DX10. Is it perhaps recommended with these uber cards to have Vista and DX10? It just seems the card cannot handel the OpenGL archatechture too well...

I've got all the power supply slots connected correctly, triple checked everything, all good... Everything else is fine and sweet, just not Il2

System specs, if it helps;

AMD 5200 Dual Core, Water Cooled,
Asus EN9800GX2, Standard Cooler config,
3GB Ram
1264GB HDD Space
Gigabyte MA55ASLI-4 Mobo,
850 Watt Silverstone Modular PSU...

Any idea guys?