>>I have a form that's been in use for years. Went to make some changes to it, and I have found a "dead spot" on the form. It is about 20 pixels wide and 170 pixels tall. It acts like there is an invisible object there, but there isn't. Clicking in this area produces no results. Right clicking in this area does not call the menu. Normally, when you click your mouse on a form where there are no objects, the cursor turns into a pointed hand. In this spot, it does not do that. Completely unresponsive.
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>>I was trying to add new controls to the form when I found this "area". Any ideas what's going on here? Very weird...
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>Where this area located? Is Maximum design area smaler than form itself?

It is near the right edge of the form, but not all the way at the edge. Probably 50 pixels from the edge. The form is smaller than the max design area...