my problem started when i blocked my self out, someway, i couldnt download or open apps. When i open the application folder i cant find a thing. before that happened iMessages wouldnt let me sign in claiming that my apple ID is "new" and i needed to call AppleCare, that didn't work so i gave up but FaceTime worked so i didnt need it that much. i formated my mac and reinstalled ML, and now i try to sign in on both iMessages and FaceTime, both claim that there is no internet connection, yet i can use everything else related to internet on my mac. App Store, Safari, Mail...etc all work.