So when I first got my 3GS, a day after I had it the screen had a black strip along the left side of the screen and the screen was cut off on the other side of the phone. Today my friend texted me and said his did the same thing, but he couldn't get it to go away. I just did a reset and mine went away. He tried reseting a few times and then just left it until he got out of work. About 3 hours after it happened it just went away on its own. I told him to take a screen shot but he said it didn't show the black strip. Just wondered if anyone else has had this sort of problem.