Errors in Nested Subtotals for Excel XP and 2003

[JAM892]

When I nest a subtotal in Excel XP or 2003, some of the secondary subtotals
appear below the primary ones. When I summarize up one level, the detail for
these secondary subtoals still show.

This is an example of how it should look:

primary detail secondary detail
primary detail secondary detail
SECONDARY SUBTOTAL
PRIMARY SUBTOTAL

This is how some of mine display:

primary detail secondary detail
primary detail secondary detail
PRIMARY SUBTOTAL
SECONDARY SUBTOTAL

And, when I summarize at the Secondary Sutotal level, the Detail stil shows.

Has anyone else experianced this problem? If so, how did you fix it?