Screen is faded and depixalated. What's up?

I have a 24inch screen iMac Model A1225. 2.66 GHz Intel Core 2 Duo processor, 6MB Mac OSX and iLife
The problem is over the last couple of days the screen has become depixalated faded and very washed out. Throwing shades of light pink. My usage is about 2 to 3 hrs a week so not thrashed.
Can anyone throw any light on what the problem could be, please.

Could be a failing GPU or display panel......or it might not be. It's impossible to tell for sure without proper diagnostics. You can run the Apple Hardware Test to see if it reports any errors, or you could just haul it into the nearest Apple Store or AASP to have it checked out.

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 DALE

Screen is faded and depixalated. What's up?

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