Protecting merged cells
 

Is there any way to protect merged cells on a worksheet?
I have an application that contains protected and
unprotected cells. The unprotected cells allow users to
enter data. If a protected cell is copied to a merged
protected cell, the protection warning appears, which is
what I expected. The problem is copying an unprotected
cell to what I believe to be protected merged cells
(locked and hidden). This overwrites the merged cell.

I have shut off the users ability to cut and paste but
want to leave the user the ability to copy. Is there any
way I can do this and protect the merged cells from being
over written?

Thanks,

Lee