title: iSight/FaceTime camera not working after upgrade
body: <p>right now i am running the OS X Yosemite beta 10.10, after upgrading my OS X i lost my camera, i tried everything in the forums, but nothing helped. </p>
  
  <p>i can't FaceTime, or Skype or anything. normally i would take it in to an apple store, but the closest apple store to me is about 200 miles away.</p>
  
  <p>since i am beta testing OS X Yosemite, i knew i was going to have some problems, but i need this to work </p>
  
  <p>also; i also installed the update 2 days ago as it was recommended in the app store. </p>
  
  <p>(not a hardware problem, was working perfectly before the upgrade and it is not found in the "system info> USB"); also not user specific.</p>