mod_dav not being detected with apache2 debian etch

# apache2ctl -t -D DUMP_MODULES
Loaded Modules:
core_module (static)
log_config_module (static)
logio_module (static)

...snip
cgi_module (shared)
dav_module (shared)
dav_fs_module (shared)
dav_lock_module (shared)
dir_module (shared)

...snip
Syntax OK

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The plugin DAV Login cannot be used : The Apache mod_dav module must be installed before DAV can be used
Call Stack Trace
File Line Function
/usr/share/webmin/virtual-server/save_newplugin.cgi 15 virtual_server::error
(eval 21) 6 (eval)
/usr/share/webmin/miniserv.pl 2043 (eval)
/usr/share/webmin/miniserv.pl 709 miniserv::handle_request

Status: 
Closed (fixed)