My Touch just shut down all of a sudden. Now it won't restart, it just shows the Apple logo then shuts down after a few minutes. Every time I reset or turn it on, same thing. I have things I haven't saved in Notepad and a tons of stuff transferred to ptunes so I'd love not to have to restore it. Any tips? This is the third time or so. If I can't get it back, I'm not jailbreaking again.