Crashes since Crossfire

Hiya i have some probs does anyone of you have this prob or had it and now how to solve it.

Since i started to use 2 Ati radeon Sapphire 2600XT HD 512mb in crossfire formation GW has some problems with running i do not have blue screen of death so that is ruled out.
But what i do have is that it just like poof and GW crashes and it's only with GW not with other games like Cabal Online or Doom 3 or C&C3.
You can say don't complain unplug 1 card or don't don't crossfire.
But i wish to resolve it with keeping my current setup.
I tired to reinstall DirectX9 didn't work still have it. and i have heard of another rear thing that sometimes happens with DirectX9 don't know what it whas but it is not very common to happen.

Anyone have a idea what this could be

Move to technical problems forum?

Running Windows XP?

Check Event log:

Control panel > Administrative tools > event viewer > Check all three categories and coy/paste the errors if there are any related to your problem

Reinstall/update video card drivers:
http://ati.amd.com/support/driver.html

Start > Run > type dxdiag > Save all information in the bottom right > copy/paste here

found it there whas some date transfer error the VGA's had some probs with each other so. So ill google some more to find some info to this matter.

If you want some more help, be sure and post all the errors and dxdiag.

Does it crash always - like as soon as you start it. Or is it just random.

When it crashes, is it "frozen"? Is there a repeating sound sometimes? Can you hit CTL-ALT-DEL and use the Task Manager, or do you have to reboot?

Is your cpu a dual-core?