Windows 7 automatically changing display color

wow.......no luck even with uninstalling my GFx driver. Idk what the heck to do. my guess is it is a win7 issue, but ill try with an external monitor and report back.

Im sure youve fixed it by now but I thought Id let you know anyway.
I had the exact same issue as you described and fixed it by uninstalling asus splendid utility.
Cant remember if you had asus too but if not it must be a similar programme pre-installed to improve your display.

@Reid I just wanted to thank you a lot! I've had this problem for two days and it seems to be related to this ASUS Splendid Utility programme. But it seems you do not have to uninstall it! The reason the screen turns orangy-ish is because the settings had turned to "Gamma". Just click "Normal" and then check the green box and it should be back to normal. At least that is what it did for me.