Since I do not have your code I can only make assumptions about your exact scenario and configuration.
In case the problem is that unexpected tooltips are shown, please remove the AutoToolTipify = True
setting form the RadToolTipManager's declaration. When you have this setting, the RadToolTipManager iterates through all controls on the page and in case they have a Title
server property) set, it automatically tooltipifies them.
In case you continue experiencing problems after you have removed this setting, please open a new support ticket and send us a sample, fully runnable project (including DB, if needed) along with a detailed explanation of the problem and the desired behavior. Once I receive it, I will do my best to help.
the Telerik team