Every once in a while the num, caps and scroll lock will suddenly all light up for a second, then all the light will turn off (even though I had the num lock on, and I can still use the numbers). When this happens one thing i notice is the keyboard repeat rate changes (goes slower). This happens everyday and gets annoying any ideas?
Check the connection from the keyboard to the computer. It sounds like there might be a loose or bad connection. Unplug it and plug it back in. See if that helps. If not, see if you can borrow a keyboard from a friend or someone and see if that fixes the problem.
I think your keyboard is screwed up. My advice would be: Get a new keyboard :P