Thank you for writing.
I have logged this issue in our Feedback Portal. You can add your votes/comments at the following url: http://feedback.telerik.com/Project/154/Feedback/Details/125663-fix-radchartview-lineseries-do-not-visually-show-correct-values
. We will do our best to address it for the Q2 2014 release.
Due to the nature of the problem, which is lying in the painting of the BorderPrimitive
I am not able to provide you with a workaround.
I have also updated your Telerik Points
for bringing this to our attention.
Let me know if you have further questions.
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