Monitor woes

[pa28fan]

Hi, bought a new pc/monitor combo today, 20 inch flatscreen lcd monitor. everything was fine until a couple of hours ago...after booting up, the monitor displays fine, but after a minute or so, it switches to a 'bad' display- colours and brightness go haywire-very, very bright and very washed out. Altering the contrast etc has no effect. Checked the monitor cable, all looks ok, no bent pins etc.

Advice and help welcome!!
cheers
steve

[Deerpark]

I suggest you try the monitor on another computer. If it still does the same you've most likely got a defective monitor.

[pa28fan]

Well what I have done is try my old monitor in place of the new one and THAT displays the same problem now....weird....makes me think its something ito do with the new pc then???

[Deerpark]

It could sound like a defective graphics card then.
Did you alter any display settings before this happened?

[Broni]

...or video card drivers got corrupted.