The following MSKB articles outline PivotTable limitations for different
versions of Excel:


Limits of PivotTables in Excel (Excel 97 - 2000)
http://support.microsoft.com/default.aspx?id=211517


Description of the limits of PivotTable reports in Excel (2002-2003)
http://support.microsoft.com/default.aspx?id=820742


Holly Martini wrote:
WHAT IS THE MAXIMUM NUMBER OF CELLS PERMITTED IN ONE COLUMN OF A PIVOT TABLE?


--
Debra Dalgleish
Excel FAQ, Tips & Book List
http://www.contextures.com/tiptech.html