Using VS2012 RadRibbonForm's caption element is misplaced. As a result a horizontal black line appears below the title. Additionally, the system borders of the form are thinner that they are supposed to be.
Declined: This issue appears only when debugging and the form will be displayed correctly in release mode. The root of the issue is incorrect value returned by the SystemInformation.FormBorderStyle property in debug mode. To avoid the issue when debugging, Microsoft suggests to disable the Visual Studio hosting process. More information could be found here: http://connect.microsoft.com/VisualStudio/feedback/details/759413/winform-dialogs-displayed-differently-by-vshost-exe-and-exe-using-vs-2012-when-formborderstyle-set-in-form-codebehind