body / background overlaping

[n00belit3]

I am using repeat-y for a body image that takes up about 1/8 of my forum width on the left side. My forums are centered with a width of about 1000. The problem i am having is that when i restore or reduce the size of my browser window the background gets on top of the body (the samething happens when i change my screen resolution to a lower one). How can i make it so that the body and background stay on a fixed width and dont overlap eachother when i change the size of my browser?

[n00belit3]

Here are some examples:
The first one looks likes it supposed to be, the second is what is happening when i reduce the size of my browsers window or change resolutions.

[defi]

It would help if you posted the css code you are using also.

[n00belit3]

I fixed it by changing just that, ty.