Hello, please could you guys help me recently got an iMac an tried to use FaceTime with my iPhone 4 and iMac i logged into FaceTime on my iMac using the login i use for iTunes and then verified it but then when i try an call my iPhone 4 it rings then i answer it an it just stays on the "connecting" screen? and then when i call from my iPhone 4 to my iMac it says "user busy" when I'm not doing anything could someone tell me if I'm doing something wrong or how i can get it working? Thanks in advanced.