Advanced options greyed out in SQL data source

I want to use a details view and SQL datasource to create a form for entering and editing information in an SQL table.
I have the page working in read only form. But I am unable to set Insert, update and delete options because the items on the advanced tab are greyed out.
I have the primary key from the table selected, but still no good. Suggestions would be appreciated.
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have you named the primary key in your select rather than "select *"

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davnhmAuthor Commented:
Yes. I have tried it both ways. I have also tried it with different tables, and still it is greyed out.
Dry setting the data key in the DVs properties window
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