Help!
In the past - I have been able to drag formulas of one cell down to be
matched in others. For example - if I want C1 to be the sum of A1 & B1, I
type "=A1+B1" hit ENTER and it adds the two - then, to replicate the same
formula in rows 2 - 30 and so on, I just move my mouse to the bottom right of
the cell until I get the solid black cross, drag it down and the formula
repeats for each respective row. For some reason today - it won't do that
anymore.
Has a setting changed that I'm not aware of?