Drop Down Disappears when combobox ( inside of drop down ) is used ( IE bug )

Drop Down Disappears when combobox ( inside of drop down ) is used ( IE bug )

I created a drop down menu for my search bar on my website using JQuery / hover intent..
The drop down is activated by the user hovering over a button, and inside there are two combo boxes and a check box.

If the user tries to choose an option in the combo box, the drop down disappears..
Chrome, Safari, Opera and FireFox are working fine, but IE7 + 8 have this problem

I have uploaded an image of the drop down with the combo box, it is a print screen of it working in Chrome
--> The second image is where the bug happens in IE

Help would be appreciated ( If you need code, I will post it )