skype don't detect the cam

Wait for a solution from Apple. They are investigating the issue.

For the latest:

http://support.apple.com/kb/TS5216

Best.

According to Apple's technical support article entitled "MacBook Air (Mid 2013): FaceTime HD Camera might not work after OS X 10.8.5 update", Apple is investigating this issue.

In the meantime, a workaround is at http://discussions.apple.com/thread/5306216?tstart=0

Message was edited by: EZ Jim

Mac OSX 10.8.5

There is a new update from Apple to fix the issue.

http://support.apple.com/kb/DL1686

Best.