I just recently realized that my mobile menu is completely gone. At the same time I noticed that my navigation menu lost the icons I was using and the menu items within the body text had no bullets. So I think something happened to my ul's in the css. I have since fixed the navigation menu but the mobile menu and original arrow bullets that came with the montezuma theme are gone.

Here is the site:

http://smsdesignlab.com/

Any ideas?

Thank you in advance.

I would export your settings to start.
I would then go to each CSS file and reset it to the original and chack the page - if it is fixed, you know that CSS file is the culpret
then copy that code and save it, import the saved settings and compare that virtual CSS file to the original an see what the difference is and fix any error.

Ok,

So I did all that and there was still no mobile menu with the default settings.

Any idea of what else could be causing the problem?

Just go thru the basic debugging stuff. Did you make changes to any of the virtual templates? if so, do a similar thing, copy what you have and then reset the templates one at a time.

I did that too.

Using firebug I see that the code for the <nav id = "menu1-wrapper"> and <ul id="menu1"> are there but the <select class="menu1-mobile"> with the menu option values is not. Is there a way to insert that?

<nav id="menu1-wrapper" class="menu-wrapper col7">
<ul id="menu1" class="cf menu">
<li class="active page-index"><a href="http://smsdesignlab.com/"><i></i>WordPress</a></li>
<li class="page-landing-page-design"><a href="http://smsdesignlab.com/landing-page-design/"><i></i>Landing Page</a></li>
<li class="page-gallery"><a href="http://smsdesignlab.com/gallery/"><i></i>Gallery</a></li>
<li class="page-about"><a href="http://smsdesignlab.com/about/"><i></i>About</a></li>
<li class="page-blog-2"><a href="http://smsdesignlab.com/blog-2/"><i></i>Blog</a></li>
</ul>
</nav>

Export your theme settings (MTO->export import) to a text file and attch the file to a reply

Thank you for looking at this. I really appreciate it.

with your settings, when I make the window smaller the menu drop down shows fine. It myst be something else that is particular with your site. could be anything from an edit you made to a file (wordpress or theme) the version of php you are running or something else. The only way I cuould figure it out is to get in and play with the site.