XF 1.4 Background Problems

I am using the style Flexile, and have never used xenforo before, I am very new to doing backgrounds. I looked it up and it said inside the General and then HTML there is a spot for a image as a background, So basically I setup an image. And there is one problem. The background of the template is covering the image... How do I fix this?
Here you can see a closer look of the template background I want to change.
Here you can see the image is there, but its being covered.

Please help :)

Jake Bunce

XenForo moderator
Staff member
I think you want this:

Admin CP -> Appearance -> Style Properties -> General -> Body

(instead of General -> HTML)
Okay, I got the image in a fixed position.... But there is a problem, when you scroll the image doesn't scroll smoothly.... How do I fix that?

Jake Bunce

XenForo moderator
Staff member
What is your forum URL? I want to see the problem.

Fixed background images do require some extra rendering while scrolling which can cause visual lag on underpowered systems.

Jake Bunce

XenForo moderator
Staff member
It scrolls smooth for me.

The scroll lag is on the client side. Not much you can do.

You might try a different image format. As a grayscale image you don't need the color depth of a PNG. Try using GIF. I don't know if that will help the lag, but it's worth a try.