Hi,
Yes, its a css issue. I must have changed something somewhere along the way, as it didn't do that before.
You can fix it by adding this in your stylelayout.css
.altcontent1 .rtop, .altcontent1 .rbottom {display:none;}
.altcontent1 { margin: 10px 5px 10px 5px; }
or some variation of it according to your tastes.
Hope it helps,
Joe