Hi, i have a JB iPhone 3G 3.1.2 OS. Everything has been fine until now. I had SBRotator on and all of a sudden it started to go really slow and in the end not respond. So i turned my iphone off by holding the power and home buttons and now whenever I turn it on it stays on the apple logo screen for about 10 seconds and then switches itself off. I've never had a problem with SBRotator before. What can I do to get it working again? Any help is greatly appreciated. Thanks.