Here's my problem, I have a 1st gen Iphone that I cannot unlock. When the slide to unlock thing pops up I touch it but cannot slide it. The only way that I can get to the main screen is by restarting the phone every time i want to use it but then I have to wait for it to load. It is only the bottom portion of the screen that does not work so no phone, mail, safari, or ipod. I have restored the phone and I still cannot unlock it any suggestions on how to fix this???