You shouldn't be using RDC on Server 2012 with or without Metro. You should be using either Powershell and or RSAT. In general the interface on 2012 is a marked

You shouldn't be using RDC on Server 2012 with or without Metro. You should be using either Powershell and or RSAT. In general the interface on 2012 is a marked improvement over 2008 R2.