Since 220, VS occasionally hangs when a new file is being created. All I
see is RS's "parsing files" dialog in the bottom right corner without
any progress and VS hangs with the "Delay Notification".
This could be NUnit-related (latest version). I had the hangs when
creating a new class from an NUnit template. I also had issues with 220
when starting a solution that referenced NUnit (RS dialog started
flickering because of nonstop exceptions and locked up during parsing of
the NUnit DLL).