[jQuery] Superfish menu: IE 7 problem

Please have a look a main menu at this demo. http://www.okadadesign.no/vitaveritas/ Om oss and Medieomtale have sub menus. The submenu works fine with FF, IE8 etc. But it fails with IE7. I have to use sprites background images and the second level sub menu have to be positioned at a certian

[jQuery] Re: Superfish menu: IE 7 problem

I added z-index in different ways, but I am not able to find solution. I checked the validation, but nothing related to the issue. Help please??