Hello datek2517,
This is Kevin from Palm. Difficult to say what the source of the issue might be. Removing and replacing the SD might work, you never know. A similar situation happened to me once and I pulled the battery out for a few seconds, replaced it and the device jump started. Beyond that, try all the troubleshooting steps in the Palm Knowledge Library article
"Handheld won't turn on, or screen blank/unreadable".
Sincerely
Kevin