Recently updated to windows 7?

If you didn't had this issue with the OS you previously had then:

1. Try downloading a driver for your laptop (Vista drivers also work good)

2. Go to Microsoft Support Page

Link: http://support.microsoft.com/

If you upgraded to the windows 7 64 bit...it could be a driver compatibility issue as 7 is currently known for some hardware...*_*

Go into your bios and check to see if the screen brightness is 8 instead of other numbers , i know you said you already checked the bios but it should be 8 or your inverter could be bad, that is the cheapest to replace but if you have to replace the cable or the screen itself than that could be the issue

I just upgraded myself and first thing I did was check the video and audio driver installation CDs that came with the laptop when I bought it. There were two sets of drivers in the CD. one for Vista (don't get me started) and one for XP. I just wrote down the brand and version number and searched for newer versions that were compatible with 7. I had SIS video drivers and I adjust brightness and contrast from the SIS software itself than anywhere else.

That wouldn't be a Windows 7 issue. Your screen backlight is the problem.

Re-format you difficult rigidity and do a sparkling deploy, yet before you're attempting this, verify you back you your documents. you should use homestead windows person-friendly move device, it truly is what i used and its very sturdy. use the link less than on a thanks to create a document with all of your documents on it, and then you may do a sparkling deploy of homestead windows 7 and then you'll get all you documents and application documents back on homestead windows 7. The link is pertaining to XP, even though it truly is going to nonetheless artwork in Vista