Not sure about others but your message is missing merciap...luckily it showed in my email notification:
I'm on Internet Explorer 11.0.960016476
I updated the other day. It says I'm using Preference Lite 1.7.5 now.
Thanks for the info... are you running ie 11 in Document mode (compatibility mode) for a previous version of ie, or running it as a true ie11?
I just re-installed ie11 on my machine and the menu is as it should be, but if I change it to ie10, then 9, the menu is still ok. Only when I switch it to ie8 with the document mode, it goes to the mobile menu.
The problem with ie's document mode settings (compatibility mode), it only simulates the previous ie versions. I was just running an official ie8 version and the menu was working as it should.