iPod touch Problem

I can no longer access information on my I-Pod touch.

I open the I-Pod, slide to unlock, than arrive at the main screen. I touch the music button and it brings me to my music. Not even five seconds later, I am sent back to the main screen. After trying this several times, the same result occurs.

If anyone can help, that would be greatly appreciated.

Pressed the power and main button together and rebooted system. Everything is back to normal.