Bob's answer is for optionbuttons from the Forms toolbar.

If you're using optionbuttons from the control toolbox toolbar, then each
optionbutton has a groupname property. Each group of optionbuttons have to have
a unique name.

(They default to the sheet name if you don't do anything special--so they're all
"connected".)

ilver belletti wrote:

How is it possible in Excel 2002 two or more option bottom series. I mean to
have two or more option bottoms selected at the same time, because they
define different variables and they are connected to different boxes. If I
join two bottoms in one group, and I try to add another one, I don' t get an
independent control. If I select it, the previous ones are deselected, and
when I select one of the previous, it is not possible to select the latest
added.

--

Dave Peterson