Check box links
 

My spread sheet contains (2) check boxes (forms type) that I need to link in
the following manor. If I tick box 1 than box 2 needs to check. That I can do
with linking both boxes to the same cell using format control. What I need to
be able to do tick box 2 with out it effecting box 1. I can not do this with
programming through VBA or anythingelse do to the other users will bust it.
Question: Can I link a check box to two cells with format control?