SNIP
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>>Am I wrong that the tables can be updated if opened in a private datasession after they were opened in the initial datasession noupdate? If not, it seems we'd be able to further control the unplanned updates, by planning them to occur in a private datasession.
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>I've tried that several messages upstream from this, and yes, the status of the first use of a table is inherited in subsequent "use again"s only as long as you're in the same datasession. So if we keep the lookups readonly in forms where they're used as lookups, and open them readwrite in forms where they are edited, they will be readonly most of the time - and safe from occasional inadvertent updates.

Interesting.