The Mother Board

[boheemee]

I have to agree with evasive, bad caps are still a big problem. I just finished recapping my Acer LCD monitor. 6 bad caps on the power board. Here's a reference to a monitor like yours on the bad caps forum.
http://www.badcaps.net/forum/showthread.php?t=14300
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[Karlsweldt]

Possible that Windows has done its "thing" again, and optimized the monitor connection beyond its limit? Try a setting for refresh rate at 70 Hz.
If you have a good image when in the BIOS, but after Windows starts you loose the image, very likely. But if an unstable image when in the BIOS, very likely the monitor itself is experiencing the backlight failure syndrome. Your model (and similar) should have a VGA as well as a DVI video port. So possibility of testing on another system is an option. But as you mention 'flickering', that points to either the backlight tubes failing or their power inverter. They require around 150 volts to become active, then the voltage falls to around 60 volts or so (in-circuit load resistor) to keep them lit. The inverter board may have suffered a mild heat extreme, and is in failure mode. If that in-circuit load resistor has gotten too warm, it can pass heat to the solder connections.. and melt them!
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F@H.. to solve mankind's maladies.. in our lifetimes!