Hello Ciaran,
I've spent at least 2hrs surveying my template files, database files trying to remove these ????. I have no idea what these are.. think they have something to do with the blog posts. I once had them when trying to use certain modules for social media sliders. Those are gone, and these are left. Used firebug, and I get this
"<div class="leading-0 clearfix" itemtype="http://schema.org/BlogPosting" itemscope="" itemprop="blogPost">"
I'm not using blogs on this home page.. on and it adds large spaces between modules above and below.
Thanks
P.S. this is what I was trying to get rid of before when my page went awry and unable to access it.