Listers Can anyone help with this problem? I have a grid thematic table which represents bushfire hazardous areas. I have a column called risk which contains a value of 0, 2 or 3 for each reference cell. 0 represents no risk, 2 represents a bushfire prone area and 3 represents an extreme bush hazard area. However the current data is inaccurate and needs to be modified. Currently some of the 2 and 3 zones cover rainforest which was found when some newly acquired vegetation mapping was overlayed. I have created tables which have the bushfire grid references which contain rainforest and I want to use these tables to automate the process of changing the existing 2's and 3's to 0 in the main bushfire hazard table. I have tried using the update column command but it never seems to change the actual data in the risk column. An extra column is always added called risk_2. I would appreciate any help especially after this long winded explanation. Regards Matthew Schultz Design Officer Gatton Shire Council Queensland Australia ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]