Check the setting he

ToolsOptionsEdit tab, Extend data range formats and formulas

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Kind regards,

Niek Otten
Microsoft MVP - Excel

"Laurie" wrote in message ...
|I have a spreadsheet with an addition formula toward the end of the rows.
| There is one cell in the row, before the cell with the totals formula, that
| is not included in the formula. Suddenly, the sheet is updating the formula
| to include this cell. I don't want this. What's the setting to make Excel
| stop acting on it's own here? This only happens on one machine, running
| Excel 2003.
|
| Thanks.