Could someone check the above page and tell me what it is I'm missing... The page wrapper should have a grey border on the left and right sides extending the length of the content. On every page except single posts WITHOUT comments the border shows, on the above page (and all others with no comments) the wrapper is getting ended early, although this isn't apparent (to me at least) in the source for the page. However all pages validate and it's doing my head in, really need to get it sorted.
Can anyone help? It's probably something stupid I'm overlooking but it feels like I'm banging my head against a brick wall.