IE7 CSS Dropdown Menu Problem

[XraySierra]

I'm having a problem with the my dropdown menu in IE7 (elizabeth.fuelmultimedia.ca) For some reason, the menu goes behind the header image. This only seems to happen on IE7. Anyone have any ideas?

[ralph.m]

Perhaps try a z-index here:

#top {
  height: 115px;
  position: relative;
  z-index: 100;
}