While running VS 2012 today I finally hit the wall on that ridiculous all capitals main menu, which surely has to rank with Microsoft Bob as one of Redmond's worst UI moments.
Happily, I found this post by Richard Banks on how to restore sanity (i.e. mixed case) to the main menu.
In case that post goes offline, all you need to do is add this DWord registry entry:
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\General\SuppressUppercaseConversion
with a value of 1 and then restart VS 2012.
Ah, sanity!