In Telerik version 2016.2.607.45, the RadGrid Excel Like Filtering Context Menu Style is Broken. The width and alignment is not 100%. When I drop the older Telerik.Web.UI dll and corresponding Skins dll in my project, the issue is gone. I have attached two images, one from the latest release, and one from the older version. You can see how the latest versions style breaks and does not show the menu correctly.