>>>>I only want to cange the records that are currently being displayed on the grid, so it's a subset of the records in the cursor/table. How do I know what records are being displayed?
>>>
>>>
>>>>>> If this is a logical field, make sure that the value of your checkbox is set to .f.
>>>I'm doing this in the init of the grid and also of the checkbox itself, but I'm still getting a data type mismatch.
>>
>>Please post the relevant code and also verify what is the value of the field in the table.
>
>How do I 'post the relevant code' - can I e-mail you the test table and form?
>
>And yes, the field is logical.

Ok, you can e-mail it. Alternatively, open your form in the Class Browser and then click on View Code button to produce code for the whole form.