After refreshing a pivot table in Excel 2000, page fields values include
those that were in the old pivot table data but are absent from the refreshed
data. For instance, a page field button named 'Year' lists 1998, 1999, 2000,
2001, 2002 and 2003 as values. However, the data no loger includes any rows
for years 1998 and 1999. How do I remove these values without re-creating
the pivot table from scratch?