AutoCAD 2013 :: Error 1606 When Users Try To Start

I have Autodesk Design Academy 2013 installed on a lab of computers in my domain.  Students have been successfully using Inventor 2013 so far this year, and now they are trying to use AutoCAD 2013 and Mechanical 2013 but are encountering an error.  When trying to start either of these programs, an MSI installer starts (I suppose for user-specific files) and then the message box below pops up:

After closing out the error boxes, the programs simply do not start.  The domain users have their personal folders redirected from a network share, which is listed in the error box.  Why these MSIs can't access the network location, I don't know, because the user logged in has full permissions on their own folder, and they can indeed access their folder from these computers.  When I log in to the computer with a local administrative account, the programs work without error.  how can I get around this so my users can actually use the software?  Is there a registry key I can change to point to the local drive instead of their personal folders?