spelling not working
 

After I upgrade my Excel97 to Excel 2003, I was trying to check the spelling
in a workbook, so I click the "Spelling" button and a message appears with
this message: "The Spelling And Grammar function is not installed for this
application. Do you want to install it?", so I click Yes and "something"
apparently was installed, then I tried to use the Spelling button and this is
not responding, I mean, I can hear the sound when I click the button, but the
spelling is not starting.....Somebody can help me with this problem?
Thanks and so long