Hi Duane,
Try adding this to your theme.skin file:
<portal:mojoMenu runat="server" SkinID="SiteMenu"
RenderImages="false"
/>
You might also try adding this to your CSS:
ul.AspNet-Menu li img { display:none; }
You will probably also want to review the sticky thread for Important Skin Changes, if you haven't already.
It might also be a good idea to compare your layout.master to one of the newer skins, make sure you have <portal:ScriptLoader and <portal:StyleSheetCombiner in there. You may also notice newer skins replaced the single google analytics control with 2 newer controls one at the top and one at the bottom.
Hope that helps,
Joe