Which FX card are you using? Which brand? See if other people with the same card have the same problem.
Alternatively, if you have a spare video card lying around in a drawer or something, try putting it in and see if that problem still happens, or if its just a conflict with your current card/drivers. If it still happens with a different card, but doesn't happen on someone elses system, then theres something else in your system causing the problem. Using memory managers? Leaked drivers? Old DirectX runtimes? Win2k/ME/XP? Etc. Easy way to find a fault - eliminate everything that's not causing it.
+BlackD
Alternatively, if you have a spare video card lying around in a drawer or something, try putting it in and see if that problem still happens, or if its just a conflict with your current card/drivers. If it still happens with a different card, but doesn't happen on someone elses system, then theres something else in your system causing the problem. Using memory managers? Leaked drivers? Old DirectX runtimes? Win2k/ME/XP? Etc. Easy way to find a fault - eliminate everything that's not causing it.
+BlackD