Every time I turn on the player (even if it's only been a few minutes), all of the settings have returned to the factory defaults.

Does anyone know if there's any user-servicable batteries, etc in the player that i need to replace, or is this a sign of something worse.

I've also noticed that recently, the player seems to be far more susceptible to jumpy playback on cheaper media - it used to be very forgiving - any ideas?

Thanks