Hi Strategon,
You should set the Skin property of RadToolTip to "" (an empty string). For additional information about RadControls' skins, please refer to the following help article:
http://www.telerik.com/help/aspnet-ajax/howskinswork.html
Kind regards,
Petio Petkov
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? Explore the
Telerik Public Issue Tracking system and vote to affect the priority of the items.