John,
Instead of changing the style in all the OOTB content, why not just change
it in your template(s)? The callouts use a font named RomanS. Simply
assign a different font to this style in your template(s). Whenever you
insert a block using that style, into a drawing created with one of your
templates, your font will be used instead. You could also try font mapping.
It seems like it would be a lot less work.
Dan
--
Daniel J. Altamura, R.A.
Altamura Architectural Consulting
and SoftWorx, Autodesk Authorized Developer
http://partnerproducts.autodesk.com/popups/company.asp?rdid=2139
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