Wavy lines on webpages with 22 inch Acer monitor

[frontgraph]

wavy horizontal on acer monitor
computer seems ok ...lines on monitor (5 yrs) just started

 

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check monitor with another mobo

 

[mrfi5]

wavy horizontal on acer monitor
computer seems ok ...lines on monitor (5 yrs) just started[/quotemsg

i think that u don't have the display driver.try installing ur display driver.it will prevent the horizontal waves from coming.