I have a main form window (c#) that won't minimize or maximize. Clicking the control menu buttons will minimize or maximize the form, but the form immediately reverts back to normal size. This just started all of a sudden, I have rebuilt the app, and searched through the form code and properties. Nothing was changed as far as I know, and there is nothing out of the ordinary I can find. I'm pretty far into designing this form and I'd like to keep it if I could rather than redesigning it since it has toolbars, tree and grid controls.