Q:

menu is not working properly in IE8/7

i am haveing issues with menu in IE7/8.. when i hover over the navigation.. the submenu is also showing in the list of main menu .. 
please check the second menu in IE8
http://www.mulberrydesignerkitchens.com/ and give me some fix .. 
please help me guys

A:

You're not positioning your submenu at all. Try this:
nav#primary-menu ul#menu-mainnav li ul.sub-menu {
    position: absolute;
    left: 0;
    top: 100%;
}

