I have tried and tried and I can't seem to get rid of the drop shadow (filter property) on the submenus in my solpartmenu. I've not defined any menueffects for a shadow in my .ascx file and I have even defined a custome css class to it (via submenucssclass) and not defined a filter, yet it still puts one on there. Here is the code:

in the ascx:

<dnn:SOLPARTMENU runat="server" id="dnnSOLPARTMENU" menueffectsmenutransition="AlphaFade" menueffectsmenutransitionlength="2.3" userootbreadcrumbarrow="False" usesubmenubreadcrumbarrow="False" usearrows="False" separator="|" separatorcssclass="MainMenu_Separator" rootmenuitemcssclass="MainMenu-RootItem" submenucssclass="MainMenu_FlatSubmenu" />

And here is the corresponding MainMenu_FlatSubmenu css class:

.MainMenu_FlatSubmenu {
 z-index: 1000;
 cursor: pointer;
 cursor: hand;
 background-color: #d2d4ea;
 border-bottom: #bbbedf 2px solid;
 border-left: #bbbedf 2px solid;
 border-top: #bbbedf 2px solid;
 border-right: #bbbedf 3px solid;
}

As you can see, there's no filter applied anywhere, yet it's still showing a drop shadow under the submenus. Any help will be appreciated. I'm thinking I've probably not thought about something...

Here is what is showing up. As you can clearly see there is a drop shadow:

Thanks! I tried overridding the filter property in the skin.css, both for MainMenu_FlatSubmenu and MainMenu_Submenu (dnn's default submenu style) by adding in

filter: none

but neither worked. I still got the same drop shadow. I even tried adding the filter property back in and changing one of the values (i.e. color) to see if that had any effect. I still got the exact same drop shadow. It's like everything I do is being completely ignored. I even went back in and added properties to the ascx code (i.e. menueffectsstyle, menueffectsshadowdirection, etc.) and that had no effect at all either.

I was able to get the drop shadow off the module menus (ModuleTitle_Submenu) by setting the "filter" to "none" and that worked fine. Just the Solpartmenu is not responding to anything I give it.