I appreciate the help anyway. I called Casio and the rep I spoke with told me to take out the batteries and use it on the adapter alone to see if it still shuts off and it didn't so I assume it was just too much going on to be running on batteries alone. However, the rep also didn't sound like she knew what she was doing, kept putting me on hold for 10 minutes at a time to give me short, vague answers and wasn't very willing to hear me out in detail. I might just send this thing back to Musician's Friend and get one at Guitar Center, that way I can just go to the store locally instead of having to send it back and forth if something else goes wrong.