I've made the install with the trial version. On the same machinery it is installed Infrastructure Map Server 2012, but not using the Infrastructure Suite kit.
I had the same issue when installed Map3D 2011 and Civil3D 2011.
The cause of my problem was setting up an administrative install and deploying to machines.
Not sure why it was causing the ribbon to not load properly.
But if installed directly from the extracted EXE file, the program worked properly
(of course it takes a lot longer to install the software on user machines)
My concern here is that both Civil 3D and Map 3D have both generated the missing ribbon issue. If the solution to be accepted is install from the standard setup.exe (and not the package created from the packaging tool) you are conveying a message you do not wish to expand your install base of these two applications in large corporations. I don't imagine that is your intent so I'd appreciate an ETA when someone in programming intends to correct the package built tool failing to properly load the user profile context for both of these applications.
I finally found a solution... The solution was to authorize AutoCAD Map on the server and then the ribbon appears correctly. No way to make it work in an evaluation mode.
+1 with Stephane
As said Stephane, I suspect that the problem is linked to Win Server 2008
because I have seen many MAP 2012 Standard & MAP 2012 Enterprise
running on Win XP Pro or Vista or Seven (32 or 64 bits)
in Trial/Evaluation Mode 30 days WITH the Ribbon OK !
Please remind that Windows Server 2003 / 2008 / 2012 is NOT AT ALL supported by Autodesk ...
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