I am having problem with my unlocked and jailbroken iPhone 2G (8 GB). the problem I am having is that my touch screen freezes sometimes and other times it starts functioning again. I have to restart it several times to get it to work. I am assuming if this is a touchscreen problem then it should stop working COMPLETELY. But since it starts working again then might be a fw or software issue?. I updated to 3.1.3 from 3.1.2 to resolve this issue but still the same. Any suggestions would be helpful. Thanks