The "What's This" feature has been removed from the Help menu, and from
the dialog boxes.

In dialog boxes that still show the button, clicking it will open Help,
instead of providing information on a clicked item.

If you'd like to suggest its reinstatement, you can send suggestions to:



Put "Excel" in the subject line, so your suggestion will be forwarded to
the Excel product managers.

ofo8227 wrote:
In earlier versions of Excel there was a button on the task bar that you
could click on and when you placed it over an icon it would tell you what
that icon did. This is not in Excel 2003.


--
Debra Dalgleish
Excel FAQ, Tips & Book List
http://www.contextures.com/tiptech.html