I am creating a gauge in which I want an element to rotate in response to mouse clicks but it doesn't. I see the differwnt cursors in the correct place but clicking has no effect. What am I doing wrong?Key snippets follow.For the element: (L:SetHeading, deg) dnorFor the mouse: Compass Heading(%((L:SetHeading, degrees))%!d!)(L:SetHeading, degrees) 1 - (>L:SetHeading, deg)(L:SetHeading, degrees) 1 + (>L:SetHeading, deg)

Hi,"deg" is not a valid unit; should be "degrees". Something like: (L:SetHeading, degrees) 1 - dnor (>L:SetHeading, degrees) (L:SetHeading, degrees) 1 + dnor (>L:SetHeading, degrees) and (L:SetHeading, degrees) etc..Tom

Thanks. I made the changes you suggested but the gauge still doesn't work.

Well, you might try: (L:SetHeading, radians)( discarded)If this doesn't work, you should review the code for a "hidden" typo, a bad def, or anything else I can't spot on at first sight.Tom

My fault - there was a typo! It now works perfectly.