Every couple of minutes while im playing minecraft, my screen will freeze, and a random color will appear in the monitor covering the whole screen. Then, after a few seconds, it will say: ATI Display Driver has stopped responding and has been recovered. I have to end the javaw process because i can't recover minecraft after this. For some reason, this only happens in minecraft, and is happening so often that it is unplayable. I am using a hd 5870.