I'm working on this site http://andreas-berg.dk/wordpress/ - inside the section with all the hexagones, I have set up a parallax effect on the background image. Right here: https://www.dropbox.com/s/swi9zab8nn5l1hj/Screenshot%202014-04-14%2010.12.22.png
If your browser window is maxed out there's nothing, but as soon as you're resizing the window, at little as 1 pixel, the background image gets pushed down. Any idea what's causing this to happen? It works fine if I resize it, refresh the browser, but that would be stupid to do everything the browser is resized and not user friendly.
This works fine for me in FireFox on mac, could you specify what browser you are using? Had to add answer instead of comment due to lack of reputation :)