after upgrading zm (from 1.24 to 1.25) and OpenSuSE (from 11.1 to 11.3) I had serious problems with my configuration. The following I found out:
1. the packman packages didn't set owner and group correctly for the zm files
Open a terminal-session as root and stop zm-processes
Goto the zm directory:rczm stop
Set the rights for owner wwwrun and group www for all zm-files recursivly:cd /srv/www/htdocs/
Leave terminal open to restart zm later. Now open Yast and goto the user and group adiministration. The zm processes run with the priviliges of user wwwrun. This system-user has no rights to access /dev/video* files. So you won't see the video on your monitor-window.chown -R wwwrun:www ./zm
In Yast (user and group administration) change your filter to "system users" and locate the user "wwwrun"! In groups mark the group www for this user to give him the nec. rights
Save all and start zm again. In your root-terminal type
That's all. I hope these hints will help anybody elserczm start
Regards
Nukem36