I based a form (I created it using 'Autoform') on a QUERY called "Quotes". Whenever I want to apply a filter to the form, I get the following message: "The TABLE 'Quotes' is already opened exclusively by another user, or it is already open through the user interface and cannot be manipulated programmatically." I am the only user of this database. I created dozens of forms and never had this problem.
Thank you