A couple of things - in the if/else statement in the navbar template, the forum home URL is hardcoded as forum.php. This caused me to have problems since I renamed it to index.php so I wouldn't have forum.php as my forum title - it hadn't been the case in the past.

This may throw a couple of people as you set this variable in the navbar. Will also go to the mobile options page since I didn't get the "PC Mode" link to switch to the PC style to show up.
In addition, no link to site home via the graphic. I added that in, a simple URL most would expect instead of a wasted space for the logo.