Package install warns to stop XDM service, but it's not running

Hello; FYI: I'm new to Linux :) I am running Debian and attempting to install the cvm package. I recieve an warning, stating that I have to manually stop the XDM service, but when I use /etc/init.d/xdm stop, it says that XDM is not running. I have also used rcconf and de-selected XDM. Thanks f

Cannot stop XDM service

still shows the service as unselected. What am I not understanding here? Thanks in advance! Tom Schlodder - Calgary, Alberta, Canada