I just installed rockbox on my 4th gen ipod, and ipodpatcher said everything worked. When I unplugged my ipod for it to reset itself, it went to the apple logo, and stays there, no matter what i do. If I reset it, the screen flashes on and off, but then stays at the apple logo. It doesn't show up in itunes, so I can't reflash it. Any idea on what to do?