My new Apple iPhone suddenly dissappears from iTunes screen after 2 minutes syncing, and stops recharging. Any idea why it does that?
I have a 32GB 3Gs iPhone. My dock is connected to my laptop via usb. My laptop is on AC power of course, so I am really annoyed.
It only recharging in those 2 minutes.
The only way now is do get it out from the dock, and plug it back again, every 2 minutes.

After 2 minutes, my iPhone still says it is syncing, but in iTunes there is no iPhone, and in real there is no syncing, no recharging!
Any idea what is wrong?