I'm sure this is a no-brainer...

I have a bunch of read-only columns way over on the right of a sheet.
I use formulas to copy that into the visible portion on the left. One
of the formulas is...

=IF(CB20=1,CI20,"")

This works in many cases, but if CI20 is "" (ISBLANK returns TRUE)
then the value is "0". Why is this, and how do I get a blank here
instead?

Maury