Title says it all really.
I have attached some pictures to illustrate (COD Black Ops and Napoleon Total War, plus Windows afterwards). It seems to start off with some purple and green and then goes fuzzy green, with Windows a funny purple afterwards. This then goes away after about 5 mins.
Tried everything I can think of but no go.
It doesn't happen with films or in general usage.
If anyone has any ideas that would be great as it is annoying to say the least!
Cheers.