In article ,
says...
Having a problem in excel where the Chart, Add Trendlines is unavailable.
This happens whether using a new or existing document. Have done a detect
and repair back to defaults and have searched the knowledge base but can't
find anything on why this would be unavailable. Isn't this part of the basic
excel install or is there something missing in excel? Have looked at several
other workstations and am able to add a trendline but its not working on this
one workstation.

Maybe, XL doesn't believe it can add a trendline for this kind of a
chart. What type of chart (and sub-type of it) are you using?

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Regards,

Tushar Mehta
www.tushar-mehta.com
Excel, PowerPoint, and VBA add-ins, tutorials
Custom MS Office productivity solutions