Probably you are logged in and see admin bar(that creates scrollbar), or you just have to small screen. You have to notice that #mid area has 100px padding on top and bottom.
Still if you are familiar with PHP and some CSS I believe you can push down div#mid(in bricks album) by inserting before it some other element(for slider) without much of conflicts.
Try switching to main theme(instead of child) and check if error will still occur. I have tested on both(child and main) and can't recreate error. Although I see you have glass class in div#mid and th
I'm having trouble adjusting where the main content shows up. I want it to be higher on the page with little to no space from the menu. I can see it's because of the 100px padding in the div #mid, but