Just assign a different class for the icons in the DNN Nav menu like:

CSSIcon="IconHidden"

And then in your skin.css set .IconHidden {display: none}.  How you assign the IconHidden class in the skin depends on which method the skin uses, ascx skin or html skin, and if DNN 5 then skin objects.  Just look at the source code for the skin and you'll be able to figure it out.

That should allow for separate css classes assigned to the icons in each menu, and the DNN Nav menu would not display icons on any level while the Tree menu should still display them based on the default CSSIcon class, though I've never styled the TreeMenu before...

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Thank you rick. It sounds so logical, but I'm afraid it does not work for me.

Here's the relevant part of the skin (ascx by the way):

<td id="MenuCell" height="40" nowrap="nowrap" valign="bottom" class="main_dnnmenu_bar">

<dnn:NAV ID="dnnNAV" CSSIcon="IconHidden" runat="server" ControlOrientation="Horizontal"

CSSBreadCrumbRoot="main_dnnmenu_rootitem_selected" CSSBreak="main_dnnmenu_break"

CSSContainerSub="main_dnnmenu_submenu" CSSNodeHoverRoot="main_dnnmenu_rootitem_hover"

CSSNodeHoverSub="main_dnnmenu_itemhover" CSSNodeRoot="main_dnnmenu_rootitem"

CSSNodeSelectedRoot="main_dnnmenu_rootitem_selected" CSSNodeSelectedSub="main_dnnmenu_itemselected"

ExpandDepth="1" IndicateChildren="False" PopulateNodesFromClient="False" ProviderName="DNNMenuNavigationProvider"

StartTabId="-1" ToolTip="Description">

</dnn:NAV>

</td>

And the CSS part:

 .IconHidden
 {
    display: none;
 }
 

Did I miss something?