Hi meam20;
I see you're also using mod_pagespeed, which does similar things to AO and which can interfere in some cases. In order to debug AO, it would be better to disable mod_pagespeed at least temporarily. Once that is done, have a look at your browser's developer/ error console and copy/paste any javascript error you see there in this thread. Based on that we should be able to solve this problem.
Kind regards,
frank