It is very complicated and it is hard to reproduce the problem without your solution. It looks like you use old version of gauge control.
Since the 2011.Q3 release we introduced new gauge control. It is almost new control redesigned from scratch. Some of its features are similar to the old control’s features but they are implemented in absolutely different way (using different set of properties), while others are completely new.
Our demo application now references the new gauge control and demonstrates its features. The help topics also describe the features of the new control.
We recommend using the new gauge control in the new applications. We would also recommend replacing old control with new one in existing applications if there is a timeframe for this task.
the Telerik team
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