asterisk users - Jun 2003 - Problems with zombies left after calls to Festival

I started using Festival for the first time today and am having a problem
with zombies left behind after every time that it speaks.  I'm using
Festival 1.4.3 with today's CVS of Asterisk.  Everything seems to work.
The only obvious problem is that a defunct process is left behind every
call to Festival.

Is this a known problem?  Does anyone know how I can fix this?