Check box outline behind radio buttons on Windows 2000

FAQ Question
I have used radio buttons on of one my process diagrams. However, when I run the configuration, a check box outline appears behind the radio buttons. Is this an error?
This is a known bug in Windows 2000. The check box outline will appear when a radio button is clicked and the mouse pointer is hovered over the area where the radio button is positioned. Windows XP and Windows 2003 do not have this bug.