Windows Function Failure

Does anyone have the problem that the Windows functions on the top two "rows" of a window do not work?

On PDF Architect Pro, the normal Windows functions (minimize, close windows etc.) in in the upper right do not function. Clicking on them results in the activation of whatever is BEHIND them (usually a different program). The same is true for the drop downs (VIEW, CONVERT, EDIT, etc.).

Any ideas?

Howard