The brightness function keys work in reverse?

Dell Inspiron B130 with Windows XP Home Edition.   The screen was black... weak image of the desktop... diagnosed as a bad inverter.  Inverter replaced, does not solve it.  Next replacement cable, does not solve it.  However after sleeping with the arrow keys and FN which adjust the brightness, the screen is back to normal.  The strange thing is the FN and the arrow keys worked in reverse... grayed arrow high and arrow made brighter down!  Very strange!

Display worked all afternoon until what we chose another mode of power supply in power options, then went black again and have not been able to get this back even after trying all plans.

The bios is up to date, have the latest video drivers, etc..

This sounds like the corruption of software... the function keys works in reverse?   Reinstall Windows would fix this problem?  Someone on another forum suggested that an update of Windows might have damaged something.  ??

Any suggestions?  Thank you.

Hello

I suggest you to restore the computer to an earlier date and check if it helps:

http://support.Microsoft.com/kb/306084

Check if that helps.

Tags: Windows

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