I am using Excel 2000 and if I enter a formula that uses the / key to
perform a divide function, I get a "formula you typed contains an error"
message. This will happen with basic =4/5 or with cell references.

If I open an existing sheet that has a divide function, it will work until
I make any change to the cell.

I am not using any Lotus compatibility, or other strange settings and I
have performed a Repair installation of the software.

Ideas?

Brent