I assume the title is self explanatory. Just want to change the look of the Visual Studio 2012 not to show menu title in all capital letters.
Richard Banks posted about a registry key for just such a tweak.
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\General
DWORD: SuppressUppercaseConversion
Value: 1
In PowerShell, you can run this to set that registry key and the uppercase goes away.
Set-ItemProperty -Path HKCU:\Software\Microsoft\VisualStudio\11.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1
The above registry key is not the one that will affect Visual Studio Express 2012 RC. A comment by FormatC showed up on Banks post about the key for Express. You can find that key mentioned in Mike Gleason's answer or run the following PowerShell command to set it.
Set-ItemProperty -Path HKCU:\Software\Microsoft\VSWinExpress\11.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1
Set-ItemProperty -Path HKCU:\Software\Microsoft\VWDExpress\11.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1
Replace 11.0 with 12.0 in the registry keys above.
Replace 11.0 with 14.0 in the registry keys above.