Creative Zen Nano mp3 player not showing on ext monitor

I am having a problem getting an mp3 player to show in the finder when my powerbook is closed and I am working off an external monitor.

I have a Creative Zen Nano 512 mb which shows on the desktop of my powerbook when the lid is up. Once showing I can close the lid and it will still show on an external monitor. If I eject and plug it in again, it will not show. I can restart the powerbook but I cannot connect the mp3 player to a closed powerbook and get it to show up on the external monitor. I can only get it to show in the finder when the powerbook display is functional. It will show on both.

Anyone have info on this.

How can I get this MP3 player plugged into the USB port, to show on the desktop viewed on the external monitor when the powerbook is closed lib?

Thanks