A while after I had iOS 4 running, I noticed that every time I tried to use "settings," it would crash. When I try to play music, it opens up for a few seconds and then usually crashes too. If it doesn't crash, it is ok until I select a song, and then it crashes. Sometimes it forces it into a reboot. I tried iOS 4 on jailbreak, and then did a fresh install, and the same thing happens either way. Anyone else experiencing this?