Macro edit button grayed out in excel 2007

Dears,

I upgraded my office from 2003 to 2007, now when i want to edit any of my macros (Macros -> View) all buttons excep run are grayed out! I checked in Microsoft office setup installed features, and VBA for office applications are installed...

any help

Have you enabled the Developer Tab?

http://office.microsoft.com/en-us/ex...730521033.aspx