need help with:

[Anonymous]

"One or more objects in this drawing cannot be saved to the specified format.  The operation was not completed and no file was created."

[rkmcswain]

Have you seen this?

http://usa.autodesk.com/getdoc/id=TS21937576

or message 9 here?

http://forums.autodesk.com/t5/AutoCAD-2010-2011-2012-DWG/One-or-more-objects-in-this-drawing-cannot-...

More...

http://tinyurl.com/kmrhmnd