[Mailman-Users] qrunner running twice?

[raul at ucnet.com.mx]

Hello all,

I've followed the instructions in the INSTALL file to setup Mailman version 2.1a2 
but when I tried to subscribe to the test list I don't get a reply to confirm 
subscription. And the mailman-owner account gets the following message every 
minute:

...
Subject: cron: /usr/bin/python -S /home/mailman/cron/qrunner
Another qrunner is already running, exiting.

Anyone been through this that can give me a hand?

And this is the crontab for mailman:
# crontab -l mailman
0 17 * * * /usr/bin/python -S /home/mailman/cron/checkdbs
0 12 * * * /usr/bin/python -S /home/mailman/cron/senddigests
0 5 1 * * /usr/bin/python -S /home/mailman/cron/mailpasswds
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/bin/python -S /home/mailman/cron/
gate_news
27 3 * * * /usr/bin/python -S /home/mailman/cron/nightly_gzip
#
# Retry failed deliveries once per minute.
* * * * * /usr/bin/python -S /home/mailman/cron/qrunner

Thanks in advance.

Raul