Codec Failure and Loss of All Settings

[ENWOD]

Ok, when I turn my player off and on again it looses all settings and when I attempt to play any mp3 it doesn't play; instead I get a "Codec Failure" error... Yet when I install a new daily build on it and restart the player it all works fine... until I turn it off again.

Any help would be appreciated as it's annoying the hell out of me. :

[Llorean]

Considering your previous post, I would hazard that your disk is having further problems.

But this is not a question about how to install Rockbox.

[ENWOD]

Hmm. Surely if it was a disk problem this problem would be permanent? However as long as I don't turn it off it works fine. (i've just re-formatted it and still get the same problem)

Alongside this I can turn it on and it'll work perfectly sometimes, then others I get the codec failure and loss of all personal settings.

EDIT:

Just to add If I "play" the rockbox.iriver file then my settings are restored; same as if I were to install a newer daily build... Any idea as to what could be doing this?