Using AutoCAD Architecture 2012 I get this same error over and over before the drawing opens and I have to keep clicking "OK". It states "The ordinal 13357 could not be located in the dynamic link library AecBase.dbx."
The AecBase.dbx file is your profile database in Autocad. I would try removing that from your shortcut target so it looks like "C:\Program Files\Autodesk\AutoCAD 2011\acad.exe" and it will load the default profile. If you still end up with the ordinal error it appears that one of the .dll files for AutoCAD has a problem.