Have ZM installed on a Debian squeeze server. I use a BT878 4-input card. I set a line in the root crontab to switch states from monitor to detect daily at specific times. When I access ZM, it shows monitor function > none. I reset the state to monitor or modect, save it, and it will hold until the next scheduled state change, when it's back to "none' again. I setup the cron job according to the documentation, and checked it for typos, seemed to work well initially, then started doing this.
Any ideas welcome...