My Mac keyboard repeats a letter
Hello. I was using my keyboard normally, and suddenly, it started to repeat the letter Q. I turned it off and turned it back on and it started to repeat the same letter. The rest of the letters work normally, but it keeps repeating Q. I changed the batteries, restarted the computer, but none of that worked. What should I do? Thanks.
iMac, Mac OS X (10.6.8), Keyboard