Sometimes when I'm done talking to someone and end the call, the phone will get stuck in Dialing mode as if I'm still on the phone with them. It doesn't let me push the end call button or anything, and the green phone call icon stays up on the status bar. Plus the phone keeps trying to shut the screen off right away as if I'm still on the call so I have to keep pressing the lock button to bring it back up. It's just completely locked up on the dialing screen, and if I get another incoming call while it's locked up like this, my phone won't ring at all. Only way I know of to fix this is to reboot the phone. Anyone else having this problem?