Prompt to leave IE when clicking on Editor window

Hi all,

Whenever we click on the FCK editor window, even without making any changes to the form, and click on the red X to close the window we are given the standard IE prompt "Are you sure you want to leave?" even though no changes have been made on the form. Is there anyway to prevent this from happening.

We are loading WebSpell checker when focus is set on the FCKeditor window if that helps.

many thanks.