This is pretty low on the severity scale, but...
In VisualStudio 2010 with ReSharper 6.1, when an error was visible in the coding window, the scrollbar slider was positioned such that the equivalent error marker in the bar on the right hand side was horizontally aligned within the bounds of the slider.
With VisualStudio 2012 and ReSharper 7, this is no longer the case. The alignment is no longer accurate. See the attached screen-shot.