It dose not happen at the exact same time sometimes it happens when you first turn the xbox on and other times you can play on it for 10 to 15 minutes and then it will happen. Some times we have a warning that its going to happen the screen will develop a few white flickering lines down your right hand side and a few minutes after turn off and back on. Other times it will just go off with no warning and then come back on. Once it has gone off and back on it will not do it again even it the xbox in on for hours. It did it when we first got the tv just over a month ago with our xbox premium so we got the elite thinking the hdmi would fix it. I have not tried it with composite but I will and see what happens. I'm also going to try and get a video of it.