Button Quit Working (Normally)

I have no idea how this happened but for some reason my number one button at the top of my keyboard (not the number pad) quit working. It's not that it doesnt work at all, it works fine in windows for example, it also seems to work at the login screen of my ubuntu. The only other time it will work is when I hold the home key down and press it at the same time. Any other time I press it it just blinks. I think this may have happened while i was pressing random buttons trying to remember old compiz hotkeys. If anyone has any idea what is stopping it from working normally i'd love to hear from you.

Also the exclamation point works fine while holding shift.

thanks