Alienware 14 screen issue (scrambled laptop screen)

[PHNerd]

Hello World,

I have a weird issue with my screen, here are the symptoms:
-Laptop screen is fine when booting (bios and Windows7 booting)
-Laptop screen is scrambled (see image) once on Windows7's desktop.
-External screen (Display port) displays images correctly once Windows7's desktop.
-Yesterday, after letting my laptop off for like 30 minutes, it began to work again properly for the rest of the day.
-This morning, the issue reappeared.

I believe it's a overheating related issue. Is it known, and could it be fixed without sending the machine back?

 

[PHNerd]

It seems fixed now. I guess I pushed the F5's I/D GFX while I should not have. This button provides some weird feature!

Che