Hello, i have flashed my SAPPHIRE HD4670 1GB DDR Ram and i have changed the max overclock signatur file and now my card would not be recognized under windows. ATI HD4670 CODE 43 Error I think i destroyed the signature key and now the card wont be recognised from the ati catalyst driver. Has anyone a original bios file for this card ?? If not can i throw the card away?? Or what ??