From your demo http://demos.telerik.com/aspnet-ajax/tooltip/examples/tooltipzoneid/defaultvb.aspx
<div class="demo-containers" id="container1">
<div class="demo-container">
<h2>
Tooltipified links in the "container1" zone
</h2>
<telerik:RadToolTipManager runat="server" AutoTooltipify="true" ID="RadToolTipManager1"
ToolTipZoneID="zone1" RelativeTo="Element" Width="150px">
</telerik:RadToolTipManager>
<div id="module">
Lorem ipsum dolor sit amet,
In the code there is no element defined as "zone1". What is the user there, I don't understand.
I want to tooltiptify a radslider but cannot succeed in this.
Marc