I recenetly reinstalled Visual Studio 2010 and since doing so I can not figure out how to get it to recognise .cshtml files again... I tried installing MVC 3 but it said it
You'll need to reinstall the Microsoft ASP.NET MVC 3 - Visual Studio 2010 tools.
You might just be able to do a repair install of MVC 3. If that doesn't work, I'd uninstall MVC 3 (making sure it removes the tools too) and re-install them both.