Perhaps you could run an UpDate Query in the After Update event of the checkbox. You would need to use the linking field to restrict the update to just those records in the sub form. You may need to end with a Requery of the subform to show the updates to those records.
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Bob Fitzpatrick
can you provide any sample file...........pls
Can you post a copy of your db in A2003 mdb format with just a few dummy records that we can play with.
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Bob Fitzpatrick
Your conversion to A2003 format has some errors. Can you try again please.
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Bob Fitzpatrick