[Mailman-Users] Not your usual "Premature end of script headers" email

[Mickey Chandler]

I finally have to admit defeat.

I'm helping a friend run a server and we've got Mailman 2.1.8 
installed.  There are probably two dozen lists running on the machine 
with sizes running anywhere from 5 to 3000 members.

All of a sudden, we can't log in to the admin page for one and only 
one of the lists.  We get the 500 Server Error page and the error log 
reads: "Premature end of script headers: admin"

The FAQ says that this should be a compile issue and that I should 
retry building things with the proper GID.  That tells me that 
logging in to any of the lists should cause the error.  But, it's 
just this one list.  And I've tried that already anyway.  The error 
is still there.

Does anyone have any ideas as to why I'd see this error one just one list?