How can i get rid of asp:Menu flickering?

this is the trick I read in some places (I presume you are using Master Pages?)
The flickering is because asp:Menu uses javascript to set some inline styles.

hence, set your css file:

#menu ul li ul
{
    display: none;
}

#menu ul li 
{
    position: relative; 
    float: left;
    list-style: none;
}

Select allOpen in new window

and the flickering should be gone.
the trick is that the display will be "none" by default (while building the menu) and then showing only what is needed when done, and not building "all visible" and then hiding what is not needed

I am using a Master page. I did find that code and tried it, but the flicker still occurs. My style sheet is attached. Could I have something else in there messing with it?Site.css

This did not work, either. I'm still trying to figure it out but looking at different ways to render a menu, too.