Save Drawing - Version Conflict (cant save down in Architecture 2011)

[Anonymous]

Hello, I'm trying to save an AutoCAD Architecture 2011 file down to AutoCAD 2007 version and am getting the message above. Option 1 is not an option for me due to a client needing it in 2007, Option 2 -tried downloading latest object enabler and didn't fix the problem, Option 3 - tried setting Proxy Graphics at both 0 and 1 - neither worked.  Any suggestions?  Thanks.

[Anonymous]

AEC objects are not backward compatible, never have been. If the recipient just needs linework and not the AEC objects, just sxport to acad 2007 in plan view and the software will create a 2007 file with exploded AEC objects.

[Anonymous]

OK  Thank you.