Help me fix a formatting issue in IE

My site at hostorchard.com looks fine in Chrome, Firefox and Safari but in IE the right box in the pricing table is dropping to the next line:

View PogTob.png on ScreenSnapr

Can anyone provide advice on how to fix this?

The margin-left in your CSS rule (below) is causing the issue. You have three columns which total the width of their parent exactly (3 x 320 = 960), but then you’re adding a margin. This causes the last column to wrap as there’s not room for it to fit beside the others. If you hard-code the columns to be 319px wide your problem will go away.

#price_table .column {
    float: left;
    margin-left: 1px;
    width: 33.3%; /* Make this 319px; */
}

If you want to keep the %age width, add another div inside the .column. Don’t set a width on the new div, but set the margin on it instead of the parent.