My player has stopped playing. It was OK yesterday. If I press any button on the player or on remote control the 'walkman' logo appears and there is a constant beeping noise via the headphones. No music. The player then turns itself off after 30-40 seconds. I have had the player just under 5 months. I last charged it via my pc approx 6 days ago and i have not dropped it for at least 2 months and that was only 50cm from ground. The remote control (RM-MC11EL) shows battery bar as full. I only noticed on way to work this morning so i have not had a chance to re-connect to PC via USB lead. To make matters worse, my pc crashed 3 weeks ago and i lost all my music. Im going to have to start all over again Help ! Any ideas ?