When I create userforms within Word 2003, the default close button (red cross) appears on the top right corner of each form.

My forms are set up so that the user has to:

Fill in the form and click cmdOK to complete the document.
Or
Press cmdCancel, in which case Word exits and no changes are applied.

Does anybody know a means to disable this button or, if it can not be disabled easily, execute my cmdCancel code when it is pressed?

Thanks in advance