Baggrundsbillede gentages i Safari browser

Jeg har et problem med at baggrundsbilledet (images/top.jpg) sat med (id="top") i Safari browser på MAC, gentager sig selv nedefter (hvordan kan det undgås), selv trods denne styring:

<style type="text/css">
#top {
background-image: url('images/top.jpg');
background-repeat: no-repeat;
background-attachment: scroll;
background-position: center top;
}

#background {
background-image: url('images/background.gif');
background-repeat: repeat-y;
background-attachment: scroll;
background-position: center top;
}
</style>


Begge billeder placeres således:

<table border="0" bgcolor="#FFFFFF" cellpadding="0" cellspacing="0" bordercolor="#111111" width="900" height="100%" style="height:100%" id="background">
<tr id="top">