I have an ipod touch 3g, that I just recently upgraded from (jailbroken) 3.1.3 to 4.0. A little after I did this, I tried listening to music. After about 5 seconds, the music app crashes and returns to the spring board. I have tried powering down, hard rebooting, and reseting all the settings. Is there anything else I can try before totally restoring it? Thanks in advance!