Formulas don't work anymore (SP2)

Hi,

My formulas stopped working. The content of the cells isn't updated automatically anymore when I change values of certain cells.
(for example: in Cell B1: "=A1", when I change the value of A1, B1 is not updated. Only when I close and open the workbook, the value is updated)

I guess they stopped working after installing Service Pack 2 (Office 2003).

Has any encountered the same problem and is there a solution?

Thanks,
Christophe

thank you, that was indeed the problem!

spoefi