I have just upgraded to Excel 2003 which now shows Green Tabs in a number of
cells, indicating errors in those cells. When I click on "Help with this
error" a new window pane opens down the right hand side but nothing shows,
(total blank).

Has anyone any idea how to cure this or what's wrong?

I am running with Office SP2 on Windows XP Home SP2.

Excel has been activated.

TIA

Ed