I am still experiencing the problem described. Unfortunately this issue is of such a serious nature that if we are unable to resolve it, we may be unable to use the Telerik controls and therefore it would not be worth purchasing the full license.
In detail, this is the problem we are experiencing.
As previously described, we have the following RadToolBar within a user control.
This control is added to the MasterPage.
|<telerik:radtoolbar id="rtbToolBar" runat="server" skin="Office2007" borderstyle="None"
| width="100%" onbuttonclick="rtbToolBar_ButtonClick" onclientbuttonclicking="toolbarClicking">
We are then adding a range off buttons :
(GetButtonsForView returning List<RadToolBarItems>)
If the OwnerType of the toolbar changes, then we call :
before adding the next range of buttons in the manner described previously.
After this point, the buttons within the ToolBar no longer generate server post backs.
If you require more information, then please let me know.