http://bugs.winehq.org/show_bug.cgi?id=5687
------- Additional Comments From nlaw@nildram.co.uk 2006-30-07 17:53 ------- This is only seen if you have the "Full Screen Glow Effect" enabled in the Shaders section of video options in World of Warcraft.
If you untick this option then the offset disappears and the image is correctly positioned in the window.
Nick Law