I recently updated to 2.0 and added apps. Since then my touch has been slow but recently wont turn on. When i try, the apple icon comes up over the black background. When i plug it into the computer for itunes, it recognizes it but in the summary, my capacity turned all space to orange as "other".I decided to try to restore because my music, tv shows, etc all show up blank. It then says: iTunes could not sync ^0 to the iPod "Mike's Ipod" because an unknown error occured (-19). Can someone please help?