Hi. Recently, Excel has been acting funny. Normally I can insert
just one cells (or two or three or however many) by selecting any area
of a worksheet and then right clicking, choosing insert and then a box
pops up allowing me to "shift cells right, shift cells down, entire
row, or entire column."

Now something has happened and the choices shift cells right, and
shift cells down are grayed out. Does anyone know why this would
happen or how I can fix it short of reinstalling Excel?

By the way, I'm running Excel 2003 SP2.