Toshiba Sat A75-SP231, Display too bright no...

Question

Laptop is aToshiba Satellite A75-SP231 and the problem is the display is like... too bright, temporary solution was to enter the Video settings (ATI Driver for Radeon 9000 IGP) and turn bright and contrast to minnimum. I tested the laptop using simultaneously a CRT display wich worked normally so when bright and contrast were set to minimum, I coud see an almost normal image at the lap and a barely distinguisable image at the CRT.In advance, thanks to all :D