Hate to bring up an old thread, and I know we're NOT supposed to report bugs for 3.00a3, but it happened to me, just now..

I NEVER, ever saw this message before on my player until now. In my case, I lost everything, as well. (Play;ist, Visual, Info Mode, EQ, etc etc.. ) Put it back to the spot when I upgraded it TO 3.00a3. (Of course, other than that, I personally like 3.00a3... )

I had unplugged my player when it was in the middle of crossfading, in case that may matter..

Me.