I have installed a 16gb card mostly filled with music, and quite happy with the player function. I also downloaded album art grabber which filled in all the blank covers for me. But every so often (maybe once a week) I lose the majority of the album art....just a case of running the album art grabber again but not sure why it dissappears? Also I set a fave song to ringtone and this works fine but then disppapears when the above problem happens? the mp3's are are all still there.....a bit confusing...any clues?