You should be able to Left-click on A1, type AAA and press Enter. Then
Left-click on B1 and press = and then Left-click on A1 again and press Enter.
AAA should show up in B1, and the formula =A1 should show up in the formula
Bar when B1 is selected. If you cannot do this, then something is wrong. To
determine if the problem is with the file, or with your computer, try moving
the file to another computer and see if the problem moves with it. Also, try
opening a brand new Excel file on your computer and trying the above
exercize. If it don't work, then the problem is with your computer or your
install of Excel.
hth
Vaya con Dios,
Chuck, CABGx3