I have a jailbroken Iphone 3G that was working perfectly. Just today, I tried to make a phone call and when I tried to open the phone app, it would open for a few seconds and then take me back to the main screen. This has happened before to my other apps (and before my phone was jailbroken) and all I had to was delete those apps and re-load them again. But I'm not so sure how to do it with this. Can anyone help? Thanks in advance!