Thanks Jan The new control works fine, but the existing ones can't be operated. When you hover over them they still show the 4-headed selection arrows. When I select Properties it shows the worksheet properties whichever control is selected (whether in Design mode or not).
I had the same problem. It turned out that the control (a pushbutton) did not have a macro assigned. As soon as I assigned a macro it worked. Check to make sure the assigned macro is still attached to the control.