I just received the player yesterday, upgraded to version 2.00-beta 3, and copied a few songs up into the database.

Stop right there. 2.0 beta 3 has a bunch of known bugs, one of which is a pretty serious boot problem.

Downgrade to version 1.03 and see if the problem persists.

Then, if you're serious about testing beta software, use 2.0b7 not b3. Why did you try B3 anyway, why didn't you go to B7 if you just got the player?