Check connections. Clean it Use onboard keyboard. Try another keyboard to see if its just that one or your computer. Maybe its a leet virus.
hmn, whats the make of your lappy? several of them will fix it, or replace the keyboard.. should only cost a few bucks..
yep quickest thing to do, if worst comes to it you may have to send it in for it to be fixed but atleast its free (if still got guaranty)