i JUST ran into this problem. I don't know anything about MSDE. I thought this protection pilot was "install it and leave it" but I guess not.
I hit the 2GB limit without knowing, now everything is FUBAR. The protection pilot server will not start, the log says bad login. MSDE doesn't seem to come with any administration tools to fix the issue.
From what I can gather from other threads, you have to upgrade to SQL2000 or SQL2005 to fix it. O_O
Is there another solution that doesn't require $1000 upgrade?