Page Menu Transparency Issue: Firefox vs IE
 

On this site I am superimposing the menu bar over the logo image and while it looks fine in Firefox, IE is still showing a white background which also cuts off the bottom of the logo (see thumbnails).

Anyone have any thoughts?

Just out of curiosity, why does the function in ATO > Page Menu Bar > Background Color always default to a color, no matter what? I tried to leave it blank in the hopes of making this work but couldn't. After reading a couple of threads I did a CSS insert, which worked for Firefox but not IE.

Any ideas on this problem? I'd like to complete this site without having to drop the menu down.