IE display problem

[artfuldrone]

www.combo.ws/james/combopromotions.co.nz (index.html, index.css)

FF it's fine. IE the menu seems to disappear when quickly refreshed (click go button), but then reappears when you hover over where the menu should be.

Why is IE acting this way?

[myinnet]

www.combo.ws/james/combopromotions.co.nz (index.html, index.css)

FF it's fine. IE the menu seems to disappear when quickly refreshed (click go button), but then reappears when you hover over where the menu should be.

Why is IE acting this way?

no porblem in my IE . really cool!