I have an iPhone 3G with an unresponsive area from the top of the screen (where it shows the "service" part of "no service") all the way down through the E S D Z and X keys. This makes life miserable when trying to type in an app that won't work in landscape mode! I have restarted the phone multiple times. Could this be caused by a loose cable? Or is this likely a broken screen? I did replace the screen about 6 months ago. I'd really appreciate some thoughts before I buy a new screen! PS: No, I don't want to buy a new phone. And, I really doubt a restore will fix this issue.