Problem with background

[Zlaxzzor]

Ok, so I have a style with a really strange problem. I'm using a background with some css attributes that makes it (should make it anyway) so the background doesn't "loop" and so that it's fixed at a certain spot. This works just fine at the forum index and when you are looking in a forum, but when you are reading a thread it's very strange. I'm attaching 3 images, the first 2 are how it's supposed to be (and how it is at index and in forums) and the third one is the really strange viewthread one.

The ccs I'm using for this background right now is:
background-image: url("body_bg.jpg");
background-repeat: no-repeat ; and that is under "Page Background" in the "Extra css attributes" textbox.

Please help me out with this, what I need to know is how to get the background at the viewthread page to not loop all the time when a new table (post) begins.

Index
http://www.bfcentral.se/crew/zlaxzzor/index.jpg

Forum
http://www.bfcentral.se/crew/zlaxzzor/forum.jpg

Thread
http://www.bfcentral.se/crew/zlaxzzor/thread.jpg

Oh, and btw... I'm using RC2. Thanks in advance!

[Zachery]

lets try

background-image: url(body_bg.jpg);
background-repeat: no-repeat ;

[Zlaxzzor]

lets try

background-image: url(body_bg.jpg);
background-repeat: no-repeat ;
that didn't make any difference :/

[Zachery]

dont put it in the extra CSS area add it to the body css in its extra CSS definition area