I was recently buying songs off of my ipod touch on itunes and my ipod shut off. I turned it back on and everything was deleted, and a few minutes later it shut off again, accept this time it won't turn back on. All that comes up is the apple logo and then it shuts off again. I tried charging it but it won't even register in my computer. What are some possible solutions to solve this problem? And how can I retrieve the songs that I bought on my ipod and put them on my home computer in the Itunes library?