M230 won't stay on

My husband’s Sansa M230 is only a couple weeks old. He wants to use it primarily for the voice recorder feature. We have recorded about 6 voice recordings to test it out. Now the Sansa won’t stay on. When I turn it on it says “initializing”, shows the Sansa splash screen, then shows a recorded file, then says powering down, and shuts off. Thinking it was the battery, I have changed them twice with completely fresh batteries.

Any help would be appreciated.

slruff