Cannot Choose Commands with AutoCAD LT 97 and Internet Explorer

SYMPTOMS

If you run AutoCAD LT 97 with Internet Explorer installed, click View on the Toolbars menu, click Customize, right-click the PolarSnaps Settings icon, click Button Properties, and then click anywhere in the Button Properties dialog box, your programs may not respond when you click with your mouse, and menu commands may not be available when you right-click with your mouse.