Ok. My keyboard doesnt work, i have both wired and wireless neither will work on my imac 24" i can log in, using the keybaord, but once i go to type something in say textedit it will not type and then the mouse will stop working it wont let me use the ball button (pushing in the middle) or the side buttons. Once i type no other buttons will work, alt then an arow key is about the only thing that will work, F1 ect work find, but not any of the numbers letters, tab, shift, fn, control, command, enter, delete. None of them will work?!?! WHAT DID I DO?!?! I do recall it happened while i was watching a movie in itunes, i had been holding down the alt key for a while? That got something to do with it? Please... Help me.