I've got a GainWard GFX card

so what do i do i use the ExpertBIOS, which enables me to update my GFX BIOS whilst in windows,

what they didnt tell me is that latest version causes my GFX card to crash so now i can't use it, and here's whats even worse the updates they send me to fix it give me errors saying that they cant be used.

So i guess im not going to buy a GainWard anymore...