I'll find the cause of your flickering problem and help you solve it.
No, you won't. Anything you can think of has been tried already by numerous people in this thread. And even if it were something like you describe, the card is still faulty. There is no excuse for the GFFX to have this problem in a system where a Radeon 9800, GF3, and a GF4 had ZERO problems with flicker. So unless you're willing to admit the truth that this is a real problem with GFFX cards, get out of here!