iPhone 4 keeps restarting
I've had my iPhone for just over a month now and all of a sudden, this weekend it's started to randomly restart.
It restarts roughly once every 5 - 10 minutes regardless of what I'm using (or not using) it for.
I've tried a restore via iTunes but this hasn't fixed it.
Is there anything I can do to fix this? I can't understand how this has happened.
Thanks
Windows 7