I got this from yahoo answers:
Well... if you see the white as soon as you hit the power button (or within 5 seconds of doing so), your Motherboard is the problem, meaning that you'll have to replace the laptop. If it turns white like 10-30 seconds after you hit the power button, then it's the software, meaning that you'll have to either replace the hard drive, or reinstall the OS.
Romy I'd say you first reinstall your windows
REPLACE MY LAPTOP??!!! I JUST GO IT =[ T_T
It goes white when it's switched
off. It's all flashy when it's
on. Like now. My screen is dancing with lights! >______________________________<
But, thanks fer helping! (: