i can't scroll using the arrow keys!!
I have been having a problem lately where I cannot scroll within applications using the up and down arrow keys. on my macbook, using the arrow keys is something i liked to do to scroll in a page instead of using the trackpad, and now it doesn't work... I've noticed it in every web browser installed on the laptop (Safari, Firefox, Camino) and also doesn't work in itunes (making it annoying to easily scroll to another song in the library!) or AIM or other programs... anybody know how I can fix this? thanks.
MacBook, Mac OS X (10.4.9)