Fn+F4 key combination doesn't work


Sep 9, 2007
Hello all, I am having issues with a 2730p notebook I am working on for a friend. The fucntion+F4 combination of keys that should change his display, doesn't work anymore.

I have tried reinstalling video drivers, compaq quicklaunch program, tried updating to the newest drivers, so far nothing works.

If i have him set up for dual monitors, and then hit Fn+F4, it will switch him to ONLY the LCD monitor. If i hit it again, the icons show up in the lower right, showing it should be switchign to ONLY the notebook, but it never switches. It's a very strange issue.

If anyone has a suggestion, I'd be thrilled to try it out.