usb doesn t work
I had my Mc Book Air repaired (they install again the OSX Lion)
and now both USB ports don't woek any more!
What can I do?:-(
MacBook Air
Try reset SMC.
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".