Hello,

    <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="True" />
    <ExtJS:ScriptManager ID="ScriptManager2" runat="server" StateProvider="PostBack" Theme="Gray" />
    <ExtJS:ViewPort ID="ViewPort1" runat="server" Stateful="True">
        <Content>
            <ExtJS:BorderLayout ID="BorderLayout1" runat="server" RenderHidden="True">
                <North Collapsible="True" CollapseMode="Mini" Split="True" MinHeight="43" MaxHeight="173">
                    <ExtJS:Panel ID="Panel1" runat="server" HideBorders="True" Height="173px">
                        <Content>
                            Word
                        </Content>
                    </ExtJS:Panel>
                </North>
                <West Collapsible="True" CollapseMode="Mini" Split="True" MinWidth="125">
                    <ExtJS:Panel ID="Panel2" runat="server" AutoScroll="True" BodyStyle="padding: 10px;" Title="Navigation" Width="300">
                        <Content>
                            Word
                        </Content>
                    </ExtJS:Panel>
                </West>
                <Center Collapsible="True" CollapseMode="Mini" Split="True" MinWidth="825">
                    <ExtJS:Panel ID="Panel3" runat="server" AutoScroll="True" Border="True">
                        <Content>
                            Word
                        </Content>
                    </ExtJS:Panel>
                </Center>
            </ExtJS:BorderLayout>
        </Content>
    </ExtJS:ViewPort>
Shows the mini collapse icons in FF3.0 when collapsed and expanded (west region).

Fails to show mini collapse icon in IE6.0 but shows expand icon for (west region).

Cheers,
Timothy