MacBook (13"): Erratic NumLock and Caps Lock behavior; Beeping sound in background when recording with iSight in iMovie

Erratic NumLock and Caps Lock behavior Some users have reported an odd issue where the NumLock and/or Caps Lock functions are enabled when the machine is turned on.

The problem is that his causes the LED indicators to be the inverse of what they should: with the LED on, the intended function is actually turned off, while with the LED off the intended function is actually turned on. This can cause significant confusion in normal operation.

So far, traditional workarounds like resetting the PMU and PRAM/NVRAM have proved ineffective.

Beeping sound in background when recording with iSight in iMovie Some users have reported an issue where a faint beeping noise is heard in movies recorded with the built-in iSight under iMovie.

MacFixIt reader Rich writes:

"When I launch iMovie on the MacBook and then use the iSight camera to record, it creates a light 'beeping' sound in the background. I called Apple and a phone tech did recreate it on a MacBook they had there. Later he was unable to repeat it, so I made a quick movie and sent it to him.  I've had two calls from tech support asking for other information, so it would seem that Apple support is actively working to understand the sound/recording issue."

If you are experiencing a similar issue, please let us know.

For further MacBook (13") coverage, see our special report on the system.

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