Office 2000 SP3 Excel Page Break

Since I updated Office 2000 to SP3, my ASP code has failed when executing this function:

(the HPageBreaks.Add line fails)
function insertPageBreak ( xlsObject, strLocation )
with xlsObject
.Range( strLocation ).Select
.ActiveWindow.SelectedSheets.HPageBreaks.Add .Range( strLocation )
end with
end function

Parameters:
xlsObject is a valid object of excel created with:
Set xls = CreateObject("Excel.Application")

strLocation is a string in the form "Axx" where xx is the current row number, e.g. "A54"

I had to uninstall and reinstall Office 2000 without service pack 3 in order for it to work....