mWhilst using Excel 2003 pro

When I attache a coments box in a cell, I want to be able to place a
comments box in each cell of the same column. I have done this before but
can't remember how to to it now. The obvious answer I though was to click on
the cell with the comments box and then copy to each cell down the column..
This doesn't work.

I don't want to have to do this manually in each cell as this would be very
time consuming. I do know how to place the comment box to the cell

Any help would be appreciated