You are not alone. I noticed this weird behavior too. It happens often after the application show a print preview. The "X" is greyed out but if you click on it, it will work. Even inserting a THISFORM.Closable = .F. doesn't do the trick.

Haven't found a solution for it yet. Waiting for the next VS SP.

>I have just upgraded a VFP 5.0 application to VFP6 - more fool me!
>
>Since the upgrade users are using the close button (the X at the top right of the form) to close a form. Trouble is that the form does not close - the X button is greyed out but form is still active.