Recently I've had problems with my 5850. Primarily that upon starting to play a you tube video it immediately crashes; No BSODS as such. Windows has also flagged this problem up for me saying that the driver is fail. Having tried to install the most recent 64bit drivers I was left with a screen about 2/3rds of normal size in the middle of my monitor and the monitor being detected as having a maximum resolution of 1400x900. Luckily this was fixed with a quick jab of the reset button. However this has only developed of late and I'm not sure what has caused it to occur now. I will give the driver installation another spin and see how things go. If you guys could help me fix this that would be great. 