For no apparent reason, my iphone can no longer connect to my computer. When I plug the dock connector in, it does nothing. No longer do I hear the little chime and see the large battery indicator to let me know it is connected to the computer and is charging and I can't get iTunes to see it. I tried switching cables and nothing. It's like it's not even there. What is going on? I tried plugging it into the AC charger and it chimes and indicates that it is charging. I rebooted both my phone and computer and it still doesn't recognize that it is connected. I tried switching USB ports and nothing however it sees my iPod though so it is only affecting my iPhone. I even updated to itunes 7.5 and nothing. Tried fixing permissions. I'm beginning to suspect it has something to do with Leopard since upgrading last week.