I wanted to put the 2.1 firmware onto my ipod. I sat weeks in front of my computer, but it didn't work, till i tried it on another computer. But now my itunes (8) doesn't sync my ipod anymore. if i push "sync" theres written on my ipod that it's syncing, but only for a very short time. i don't know exactly, but i think the problem is that i don't have the firmware on my computer. So please help me, because i really don't know what to do.