Over a course of a few days, my GPU will no longer respond to the rest of the system, and I I happen to be using the computer at the time, the screen freezes up and the screen is filled with red dots scattered all over. After about 30 seconds, the system restarts the GPU and gives me the error (the GPU was no longer responding and was restarted). If I happen to not be using the computer at the time (ie the screensaver is displayed, I eventually come back, turn on the monitor and 'wake' the computer, and I will not get any display on the monitor. The only way I fix this is by restarting the computer. Any help would be appreciated as to how to fix this problem, I've installed the proper software that came with the CD, but to no avail, it didn't fix the problem.