Is your menu set as a top level menu (View/General Options/Top Level Form)?
You see an example of using a top level menu in TASTRADE.

>I have an app that runs fine as a top-level form. Recently, I added the ability to switch into an edit mode after the user utters the secret word. The edit mode works fine, too, accept for the ability to have full cut and paste.
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>Cut and paste, in my limited experiences, is only enabled by having a menu. Okay fine, I'll just switch from Top-Level to In-Screen when going into Edit Mode, accept that the ShowWindow property is Read-Only during runtime.