I am new to the Treo 600. I have installed MP3s on my SD card. They are read by the Treo. PTunes picks them up and shows that they are playing. I think I have set it up for the sound, but I must have missed something. What settings do I need to set for the sound to play through the speaker phone? I don't have the headphones yet so I have to use the speaker. I have PTunes Trial edition. I want to make sure all works before I buy. Thanks for any assistance.