Dear Users, Thanks for your plethora of responses - i think the problem has been resolved. Thanks especially to Bill Wemple for providing the most accurate response, which i have attached below. Dan, I think this is what you are looking for... Error "Cannot perform edit. " when attempting to edit table with 29 fields indexed. Error "Cannot perform edit." when attempting to edit table with 29 fields indexed. Prior to version 6.0, the error message also said "Someone is currently editing the table". The error message is confusing and incorrect. In version 6.0, the secondary message was changed to "Unable to create index." Conclusion: There is a per table limit of 29 indices. In other words, for each table, only 29 fields can be indexed. Because MapInfo creates an additional index when a user begins editing (FastEdit Off), it cannot edit tables with 29 fields indexed. To edit such a table, users must either turn FastEdit On or drop one of the indices. Hope this helps -Bill As a result i have only indexed the most relevant fields, and the program indexes other fields as and when they are utilised, then removes the index after the find operation is complete. Not the most sophisticated of answers, but it doesn't seem to slow the search terribly much. Thanks once again Dan _______________________________________________________________________ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MapInfo-L" in the message body.