My blog is: http://www.pnc-contact.com
When looking at it with Firefox all is fine, especially the drop down menu below "DOSSIERS" that shows correctly. If I use IE it is not working anymore... I have been looking around this forum to see if someone has/had the same problem but didn't find anything...
If one of you has any idea on how to fix it... ;-)
Here is the header.php: