Okay, I have more information. If I remove a virtual host that requires SSL, I'm able to start apache2 fine. Another (possibly related?) problem is that suexec fails to work now. I get this message in the error log: Warning: SuexecUserGroup directive requires SUEXEC wrapper.
Latest apache2-common and apache2-mpm-prefork version 2.0.50-4 fixes the SSL start problem.
I still get the Suexec warning. -- Bruce Z. Lysik <eldrik@logrus.com> http://quicksilver.trickynetwork.com