Ipod Nano 2G sometimes after listening to music for a while freezes

[MrDoctor]

I have an Ipod Nano 2G with Rockbox 3.15 Stable on it and sometimes while I'm listening to music, my Ipod completely freezes up and doesn't respond to anything I do with it. At this time, the only thing I can do is restart it with the clickwheel.

The same thing happened today, but I think I finally cuaght the error that shows up when this happens. The screen said "Undefined instruction at 0808". I'm guessing there's an error in the code somewhere.