Hi all.
I have been trying (unsuccessfully, so far) to figure out how to write
syntax to check for missing data in two cells before executing a function.
For example, I know that I can write:

€œ=IF(D90, D9-C8)€�

to check to make sure there is a valid case in cell "D9" before executing
the function, but the problem is if I have no data entered in cell "C8", it
will of course simply assume that cell contains a value of "0" and run the
function anyway. I want to write something like "If D90 AND C80, THEN
D9-C8"...

Anyone have any pointers???

Thanks in advance for your help!
- Chris