When I drag an alphanumeric cell to copy it the numeric values in the cell
increment by one (1) in each successive cell. Example, when dragging a cell
with Payroll 2008 entered, I'll get Payroll 2009, Payroll 2010, etc. Works
the same with dates.

Sometimes this is helpful, sometimes not. How do I turn this on/off if I
want to copy the contents of the alphanumeric down or across with the value
unchanged?

Thanks
Bill