just got a 8gb i touch couple of days ago. went to install itunes and the whole setup thing when all of a sudden the video app started to flicker on. everytime i press the home button to go back it automaticaly does it. also when i try to connect to my wi fi, as i enter my password i noticed that the letter "Z" is being pressed on its own. tried to restore everything by using i tunes and it said that an error had occured. now it doesnt want to turn on. really frustrated.any one with any known concern or knowledge of this please let me know.