There was a problem with the 2010 1 309 version of our controls which prevented this setting from working properly. Please update to our service pack release 2010 1 415 and let us know if the problem persists.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.