Autodesk just released three service packs for the Mac versions of AutoCAD and AutoCAD LT. In addition to resolving issues reported by the Customer Error Reporting (CER) utility and other general problems identified since the previous versions were made available, these service packs add support for OS X 10.8 (Mountain Lion).
AutoCAD 2013 Service Pack 1 (Mac)
AutoCAD LT 2013 Service Pack 1 (Mac)
AutoCAD 2012 Service Pack 3 (Mac)
AutoCAD 2013 Service Pack 1 (Mac)
AutoCAD LT 2013 Service Pack 1 (Mac)
AutoCAD 2012 Service Pack 3 (Mac)