Usually happens when there is interference. Try plugging your monitor into a surge protector that also protects against line "noise". That will more than likely fix the problem.
Failing that, I'd look into the source of the interference and see if you can eliminate it or move it further from your monitor. Do you have a cell phone? Do you keep it on your computer desk? That can cause it. Also ->unshielded speakers, cordless phones, microwaves.
Good luck!
Computer anomaly !
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anastrophe
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Computer anomaly !
ArnoldLayne wrote: Hawke . Thanks for your input It's appreciated but I somehow think its a bit mundane.It happens for a fraction of a second like a mini rumble. I'll take your advice nonetheless
quick, possible, fix: try changing the refresh rate of the monitor. generally speaking, if you notice wobble (usually an electromagnetic burst coming down the wire from some other device in the house), a different refresh rate may be 'immune' to the particular frequency that's causing the problem. also generally speaking the higher the refresh rate, the better.
in windows, go to 'control panel', select 'display' or 'display settings'. when that comes up, select 'settings', then click the 'advanced' button. when that dialogue comes up, select 'monitor', and there should be a 'screen refresh rate' drop down box. the higher the refresh rate the better. not all monitors can handle the highest refresh rates, but most reasonably good monitors can handle a 75 hertz refresh rate. if the refresh rate is at 60 hertz, that alone is reason enough for the glitches - most electrical power runs at 60 hertz, so you can get all sorts of anomalies if the power and the refresh rate are nearly the same ('nearly' being the part that makes the picture go goofy!)
quick, possible, fix: try changing the refresh rate of the monitor. generally speaking, if you notice wobble (usually an electromagnetic burst coming down the wire from some other device in the house), a different refresh rate may be 'immune' to the particular frequency that's causing the problem. also generally speaking the higher the refresh rate, the better.
in windows, go to 'control panel', select 'display' or 'display settings'. when that comes up, select 'settings', then click the 'advanced' button. when that dialogue comes up, select 'monitor', and there should be a 'screen refresh rate' drop down box. the higher the refresh rate the better. not all monitors can handle the highest refresh rates, but most reasonably good monitors can handle a 75 hertz refresh rate. if the refresh rate is at 60 hertz, that alone is reason enough for the glitches - most electrical power runs at 60 hertz, so you can get all sorts of anomalies if the power and the refresh rate are nearly the same ('nearly' being the part that makes the picture go goofy!)
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Computer anomaly !
Good advice, Paul. I should have thought of that 
Personally, I don't run my monitors at anything less than 85 Hz. I get headaches when the refresh rate is set any lower than that.
Personally, I don't run my monitors at anything less than 85 Hz. I get headaches when the refresh rate is set any lower than that.