I just bought and set up Virtulmin 3.26 on clean Debian Sarge 3.1 server and ran Virtualmin's configuration and I got the error...
The Apache mod_dav module must be installed before DAV can be used.
I checked to see if the Libapache2-mod-snv was installed with aptitude and it was. So to be safe, since this is a clean install I reinstalled it. There were no errors and the package was installed
Anything else I can do?