Once I spent a couple of hours figuring this out ... :)

>Hey Nick,
>
>Thanks a ton...That was it exactly! I wonder how long that would have taken me to figure out without your input.
>
>Thanks again,
>
>Paul
>>>Hi,
>>>
>>>All of a sudden I can no longer run a particular form. I get the infamous "This program has performed an illegal operation and will be shut down" everytime a run it. I am able to modify the form and I try to resave it, but continue to get the error. Any ideas?
>>>
>>>Thanks
>>
>>With no particular details about your form, at least one thing you can check.
>>I know for sure, it does this if you have a grid on the form, and you changed the table or view (which is Grid.RecordSource) and forgot to change some Column.ControlSources which do not match the fields anymore.
>>
>>HTH
>>
>>Nick