erratic computer screen movements

August 5, 2012 at 12:16:44
Specs: Windows 7
My computer screen jumps up and down erratically; unable to stop is with mouse (cabled, nor wireless).

And then -- it settles down, until next series of erratic movements - up and down!

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August 6, 2012 at 07:17:06
Try a different monitor in order to see if it's a monitor fault.

If it is a monitor fault, that's the only way to find out, and you need to know that before (possibly) wasting your time looking elsewhere for the problem.

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August 6, 2012 at 08:45:50
Will try different monitor - the very next time I notice recurring erratic movements. Although I hope there will not BE a next time! Many thanks!

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