Here Series color notations are repeated after some series. legend of different series are shown in image as below How to Avoid dulpicate color notations.
Try to open the Series Properties and click Fill, in the fill page, you can choose different fill style or seconday color, hope that helpfully. If this doesn't help, please sumbit this feedback at http://connect.microsoft.com/SQLserver/Feedback .
thanks, Jerry
Marked as answer byJerry NeeThursday, February 11, 2010 1:39 AM