[rogier]

For FireFuck you've to ad

html,body {
height: 100%;
width:100%;
background-color: #ffffff;
margin: 0 auto !important;
text-align: -moz-center;
padding: 0px;
font-family: verdana, arial, helvetica, sans-serif;
font-size: 11px;
min-width: 780px;
border: 0px none;
}

in the main.FF style sheet. otherwise it won't work in firefox.