Not sure why this is but sometimes I can use the Control Key to copy a component in an assembly and sometimes it does not work. When I select the component and the control key and try to drag the component I get a circle with a line inside the circle and the component does not copy. Any ideas??
One thing that comes to mind is that if you left-click and hold the button, then press Ctrl, then drag, you don't get the copy, but you also don't get the circle/line. So you might watch the order in which you are clicking and holding stuff and see if you spot a pattern.
WT