Have you tried the hard reset - holding the sleep+home button together for 15 seconds or so until the Apple logo appears. This normally cures this type of problem which is going to occur from time to time. All computers crash from time to time.
Have you tried the hard reset - holding the sleep+home button together for 15 seconds or so until the Apple logo appears. This normally cures this type of problem which is going to occur from time to time. All computers crash from time to time.