Pink ish screen

[Superbatman]

So i was playng crossfire and then i turn on my laptop 8 hours later and everything has a pinkish shade.

[Ravallo]

Right, the screenshot you're showing shows up perfectly fine for me, meaning your monitor must be the problem.

Either try updating your Drivers, or give the following a try:

1- Click on START and choose CONTROL PANEL. 
2- Choose and click DISPLAY. 
3- Choose SETTINGS on the Display's Interface and then ADVANCED. 
4- On the Advance's Interface choose COLOR MANAGEMENT's tab.
5- On the Color Management's Interface click on ADD. You will see a listing of Color Profiles.
6- Choose the one most appropriate with the trade mark of your Monitor and or Graphics Card. You may choose several Color Profile and make one the Default setting.

[L-Ü-L]

Deguass the screen, If you are using a desktop there shud be buttons on the moniter you can find it there if your on a laptop then,


------
Note: Computer monitors without a CRT, such as LCD monitors, do not require degaussing.
-----
Power off and then power back on your monitor. Most monitors will degauss automatically when turned on so try this first.

If the discoloration does not improve, continue to the next step.

Note: Degaussing makes a twang sound and is often followed by a short click sound. If you don't hear these sounds, the monitor probably does not automatically degauss when powered on.

Locate the degauss button on the front of the monitor and push it. In the rare case the monitor does not automatically degauss, you can try manually doing so.

Tip: The degauss button will most likely be accompanied by a picture similar to a horseshoe.
Press the brightness and contrast buttons at the same time.

Some monitors don't have a dedicated degauss button but instead require the simultaneous pressing of multiple buttons.

Often times the degauss option will be buried in the on-screen menu options. Scroll through these options to locate the degauss option or consult the monitor's manual for more information.

--------
INFORMATION FROM:
Degauss Monitor - How to Degauss a Monitor

this might or might not help but hey worth a shot?