Done it; I found Noob Jedi's post below!
--
Traa Dy Liooar

Jock


"Jock" wrote:

Hi,
Having a problem here. Essentially: In cell B9
=IF(either B6 OR B7=0,"",If(B6<B7,"",B6-B7)
Can someone sort this one out for me?

Thanks

--
Traa Dy Liooar

Jock