I Have had that issue with my friend's computer many times, but it wasn't after loading new drivers. They way I would fix it would be to do disk cleanup, defrag the hard drive and run windows update. His computer is a PIII 550, 128mb RAMBUS, 32mb TNT2 m64... I don't know if that will work, but it always works on his... Have you tried to instal the old drivers again? What drivers did you upgrade to?