Question / Help: HTC Touch Dual Music Player(s) All Died

[pqn]

I have an HTC Touch Dual (20 key) running Windows Mobile 6.1. Last night all of the music players I have on the phone failed: HTC Audio Manager opens but the songs scroll rapidly (but don't play) in the player view, Windows Media won't open / respond at all, and Pocket Player 4.0 (and later 4.1 after reinstall) will open but closes whenever 'play' is pressed. I have Napster music to go subscription music on a microSD card that tests fine when I insert and play in my laptop. Nothing that I know of has changed on the phone (ie new programs or updates) since last successful use and all other programs seem to work as normal. I tried restarting the phone including a soft reset - no change.

Any ideas, help, suggestions would be most appreciated as I am loathe (surprise) to do a hard reset and load everything in again if I can avoid it.

Thanks,

Paul