Calculation mode unexpectedly changed from Automatic to Manual

A

Alfonso

In a simple Excel 2000 file containing a column which is
just result of the addition of two other columns, after
dragging down the cell with this formula, I detected wrong
results. I noticed the calculation mode ( from
Tools/Options/Calculate ) had suddently changed from
Automatic to Manual without touching anything.
Has somebody experienced this surprising and dangerous
bug ?????
Thanks.
 
Top