George wrote:
Yesterday I spent a lot of time modifying a workbook. Everything worked
fine until after rebooting from a windows update. Now every cell with
the function WEEKNUM in it shows the error #NAME. Where did it go and
how can I get it back?

Thanks for the help,
GeoK
Reinstalled ATP and took care of problem. Anyone like to take a gander
on what happened?

Thanks for the help even though it is purely optional now.
GeoK