Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've got an iMac running Mac OS X 10.5.8 that is ignoring a few key combinations (most of the time, that is). Left-shift-e and left-command-c have stopped working. It's not the physical keys as, for example, left-shift-d works just fine. I can type E or copy using the right-hand shift and command keys.

Sometimes, and I think it's when I'm catching my computer unawares (while it's processing), left-command-c works just fine.

Is there a corrupted preference file hanging around somewhere?

share|improve this question

I had the same problem, I specifically noticed Left-Shift+R and Command+V not working. And now it's fixed.

One of the keys on my keyboard (0 on numeric pad) weren't properly in place. When I pressed it, it got stuck. I removed it, and placed it back where it should be. Now all key combinations work again.

Hope this might help.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.