Kelly,

I assume you are referring the linked cell. You can always just over-load
that cell with =NA()

--
HTH

Bob Phillips

(replace somewhere in email address with gmail if mailing direct)

"Kelly 1st" wrote in message
...
Hello,

I'm putting in a checkbox and have it as a "mixed" value in the control
section.

When it first appears it is greyed out and is has a value of N/a, then you
click and it becomes false, then tick it and it becomes true - when you
click
it again it becomes false.

What i would like is it to become N/a again and not revert back to False.
Is
it possible to do this in '97?

--
kelly m johnson
London UK