Me again,
I finally figure it out and thought I would share what I found. I don't really understand why it works, but it does...
There are two properties of the dnn:Nav control that seem to matter:
1) IndicateChildren = true if you want to see any kind of indication that a menu item has children, false if you don't
2) IndicateChildImageRoot - allow us to specify the name of the image to be used for root level menu items that have children.
The problem was that I couldn't figure out how to tell the control WHERE to find the image....I tried using:
IndicateChildImageRoot="<% SKINPATH %> <%SkinPath%>menu_down.gif"
but that didn't work, instead I got no arrow at all. When I viewed the rendered HTML I found that the <span> tag had an inline style applied and it looked in a location other than my skin for the image...found none and essentiall failed.
On a whim, I set the property as follows:
IndicateChildImageRoot="[SKINPATH]menu_down.gif"
This suddenly worked.
I don't really know why I had to use the token [SKINPATH] in an .ASCX file but it worked.
If anyone can explain, I'd love to understand this.
Paul H.