Sometimes, when I copy a formula (usually the sum of a range) to another
cell, instead of getting the sum of the new cells, I get the sum of the old
cells. The formula is not set to absolute. For example, I copied the forumula
=SUM(D6

9) from cell D11 to cell C11. The formula in C11 is now =SUM(C6:C9).
But, instead of calculating C:6:C9, the cell is displays the total from the D
column.
Has anyone else encountered this problem? Does anyone know if this is an
issue with Excel? (This issue is difficult to search for.)