Problems with the RadToolBarDropDown

[Boris]

I 've implemented a RadToolBar with some RadToolBarDropDown.
In IE and Firefox it works fine. Only with Google Chrome nothing happens when I click on the DropDown.
Have someone any idea whats wrong with the following code?


    <asp:Panel ID="pnlActions" CssClass="row clearfix" style="position: relative; height: 14px; margin-bottom: 15px" runat="server">
        <telerik:RadWindowManager ID="radWindowManager"
                                  Modal="true"
                                  VisibleStatusbar="false"
                                  Behaviors="Close"
                                  Height="600px"
                                  Width="600px"
                                  OnClientShow="radWindow_ClientShow"
                                  KeepInScreenBounds="true"
                                  runat="server" />
                                  
         <telerik:RadToolBar ID="rtbCultural"
                            CausesValidation="false"
                            AutoPostBack="true"
                            style="float: left"
                            Skin="D21Book"
                            EnableEmbeddedSkins="false"
                            OnButtonClick="rtbCultural_ButtonClick"
                            runat="server">
            <Items>
                <telerik:RadToolBarDropDown ImageUrl="/resources/images/flags/de-DE.gif" Text="SPRACHE [change]" />
                <telerik:RadToolBarDropDown Text="WAEHRUNG [change]" />
            </Items>
        </telerik:RadToolBar>
    </asp:Panel>

[Boris]

while debugging the side in chrome i've got some more detailed informations about my problem.
the debugger paused at an DOMExeption-Error in the following script:
https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js.
In the attached file is the complete error-message.
I hope someone is able to help me with this new informations.