Hey Alex,
In the last month, I've been having some intermittent problems with facebook plugins not loading my site. The loading problem happens in all browsers, but IE seems to be the most touchy. Sometimes the social plugins load, sometimes they don't (like button, like box & comments). Attached are two screenshots of what I was seeing in IE 9 earlier today.
I've run auto tune and everything is set to the recommended settings. The facebook JS and fb-root are only being loaded once on the page. I'm not sure if it's a plugin issue... the "Content - JFBCContent" plugin is the first to load in the "Content" section, and the "System - JFBCSystem" plugin is the 3rd to load, right after "System - Fabrik" and "System - RokCommon".
Anything suggestions on how to fix this and make it load more reliably?
Example URL:
Diesel Engine Infographic
Joomla 2.5.6
JFBC 4.2.4
PHP 5.3.5
All GZIP Compression, Minifying scripts and CDNs are turned off