I've just installed Rockbox on my ageing iPod 3G, but while everything else seems to work fine (I can change settings, themes etc. etc.), when I try to playback any of the MP3 files I've put in a "Music" folder that resides on the root, Rockbox just says "Loading..." and then nothing more happens.
I cannot go back, so, it seems, the Rockbox freezes. I have to reboot to get it started again.
Any idea what's going on?