That is most likely a problem with your Operating system and drivers or video memory. On this laptop the system memory is shared with the video memory. If you have them, I'd try known good memory sticks and see if the problem continues. If that doesn't work or you don't have any sitting around, I'd roll back to the previous operating system.
Does it do this in programs also or just the Operating System GUI (graphical user interface)? How much RAM do you have installed? What are the last 3 characters of your serial number?
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