Please check out this Technical Solution:
http://usa.autdoesk.com/getdoc/id=TS20109560
An interesting option for AutoCAD 2012 users using Mac OS X 10.8:
AutoCAD 2012 for Mac Beta Program
A beta program is now available for a service pack that adds support for Mountain Lion to AutoCAD 2012 for Mac. This service pack is still in beta and is not recommended in a production environment, however it does have improved support for Mountain Lion and we welcome your feedback. To register for this beta program please use the following link:
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