I just noticed there is a small 2px gap alignment in the left column. This is from a screen shot of the cs-cart.com demo website. It appears in both IE8 and F3.6
You can make changes in:
/skins/basic/customer/styles.base.css (line 650) from
.left-column {
float:left;
margin-left:-966px;
width:171px;
}
to
.left-column {
float:left;
margin-left:-968px;
width:171px;
}