Thanks Steve.  That's interesting.  I forgot about stopping xinetd.  So if I understand you right, you are suggesting the following:

1.  Review all FB processes (ps -ax | grep fbserver) and kill -9 on those

Yikes. You shouldn't kill -9 anything as a matter of course. Only as a last resort.

It doesn't give the program any chance to shut down cleanly, so there's every chance it will corrupt your database.

Hamish