[Mailman-Users] WANTED gid 99, GOT gid 48

Failure to exec script. WANTED gid 99, GOT gid 48. (Reconfigure to take 48?)

I've got this error on my new Mailman installation. On my system GID 99 =nobody and GID 48 = apache. I've looked through the archives and have found suggestions that I recompile using the id number and name of the "got" ID, in this case:

./configure --with-mail-gid=48 --with-cgi-gid=apache.

But this doesn't seem right to me. All other advice seems to point that I want it done under 'nobody'. In fact, I've run check_perms and it says "no problems".

What should I do, really?

Rob BTW, I'm an "everything" newbie.