dropdown hidden behind divs in IE7

Hi I've finally got Suckerfish working and styled but in IE7 it is hi开发者_Go百科dden behind the divs below it. See the dropdown on the 'Your Video/Pics' button here.

I know usually a z-index would solve the issue but in this case it seems not. Can anyone help?

Don't worry this site is not supposed to work in IE6 ;)

Try adding:

#header {
    position: relative;
    z-index: 1;
}

For IE, the entire block has to have a higher z-index than the block below it.