I have a MacBook and when I "test my webcam" (iSight) everything's fine. When I send a video message, everything (audio and video) works. My trouble is with the video call. I have audio, but I can not activate my camera. The camera icon has a red line through it. I've been all over the forums and blogs on this can can't find resolution. Yes, I've double-checked settings. Yes, I've restarted it (a few times). Yes, I can see and hear the person on the other end of the conversation. Yes, my iSight works just fine (per iChat and Skype...which I quit before launching this app). Any suggestions?