I was using the computer and the video suddenly started to "blink". The text is still crisp but the video seems to oscillate. I don't know how to describe it. The pictures are vibrating, and the resolution is not as high and the colors do not blend well. Are there some diagnostics i can run to tell me what is wrong with the computer? If i use an external monitor, the problem does not show up.
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11/16/12 at 10:46pm