Could be that calculation is being set to manual by the first file to open.

--
Don Guillett
Microsoft MVP Excel
SalesAid Software

"Bunecke" wrote in message
...
I have a complex workbook (Excel 2003) that has been in use for over a
year.
Most users can use the workbook just fine. However, recently, I have had
two
separate individuals who claim the drop downs won't open the menu when
they
click the arrow, nor will the functions calculate when they type in the
information. Both users are using Excel 2003 with Windos XP. There is a
simpler calculation workbook that works fine on their computers.

I have sent them a new workbook, walked through the steps with them, but I
am stumped.

Is there a setting within Excel that might be preventing the dropdowns /
functions from working?