I am getting a message that says Windows has stopped this graphic device due to error code 43. I've been to their website and can't get seem to get any answers. I use two monitors and now I am trying to operate off of just one and it is almost impossible. I've tried updating the 5450 software, but the message I get is that I have the best software for the 5450 already installed.. Microsoft is just blocking it from running. Does anyone know how to fix this issue?