Hi,
The Event Rules are contained in the EventDisp file. Are you sure OneClick is not stating "No Event Format"? If that is what you are seeing, check the $SPECROOT/custom/Events directory on the OneClick server. You are likely missing the corresponding Event file in the CsEvFormat directory, and therefore no Event Format could be found. Also double check the CsPCause directory for a corresponding Prob file.
If find the files are missing, I would also double check the files on the SpectroSERVER to see if there are copies in the $SPECROOT/custom/Events/CsEvFormat and CsPCause directories. If they're on the SpectroSERVER, place copies on the OneClick Server. If they are also missing for the SpectroSERVER, you will need to find a back that contains them or recreate them from scratch. You will want copies of the files on the SpectroSERVER if you are running AlarmNotifier.
If you make any changes or add the missing files, you will need to reload the Event and Alarm files from the OneClick Web Page -Administration Pages. There is an "Update Event and Alarm Files" link on the left hand side of the page, 5th link from the bottom.
I hope this helps,
Brad