gil64,
I would check the "sleep" and "suspend" settings on your player. It might be that your player is set to go to 'sleep' or 'turn off' after 2-3 seconds. Redicious as it sounds, this has happened on a few people's players.
What you need to try and do is quickly get into your [Sys Setup] and change your "darkle" settings. You need to play around with it and see if you can change it before it turns off.
Have a look at this knowledge base:
How to: Set sleep and power off settings from
here.
Try that and let me know if that works.