This may help...
xl: close button is dimmed after groupwise is installed
http://support.microsoft.com/default...b;en-us;260199

hankwyatt wrote:

I have a gateway laptop. I have xp pro. I have office 2003. When I open
excel, the application has the X in the upper right hand corner greyed out.
I can't close out the application without going to File, and then Exit. [ or
Close, or whatever] What am I missing?

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Dave Peterson