Startup fault
 

Never had any problems with my X5 in the two years or so that I've owned it, but this week it developed a strange fault.

Every time I switch it on, rather than playing from where I was last listening, it goes through the full startup (like it usually does after you've had it connected to a computer) and starts playing from the first track in the registry.

I haven't done anything unusual with it, installed any software or dropped it, so I have no idea why this is suddenly happening or how to fix it. Any ideas?