Quantum, so far no more problems with double split screen on this PC. But hooked up the other one (2x6800 OC cards), updated everything possible and split screen appeared again. Will go through var software to try locate problem (vista 32 on this one). Its possible that since both PCs were partitioned saving old part,that there is something in there that is conflicting.
Using standard Acer 20 flat screen,can bring 22 inch down, but this shouldnt be the problem. thoughts?
cheers