What do you mean by stopped working? It doesn't calculate? It gives erroneous
results? Do other functions still work?

What formula are you using? What happens when you hit F9?

--
Regards,
Fred


"Steve" wrote in message
...
Hi there -

The networkdays function stopped working in all my workbooks today. I
**DO** have the Analysis Toolpak installed and I **DO** have the Automatic
Calcuation Option turned on. Any thoughts?

Thanks,
Steve