By any chance are you setting the background when the window is not at fullscreen?, and then resizing larger?, the background doesnt seem to stretch from what i concluded..
because if you set a background at full screen the window size cant be increased any larger, but from the look of it when you resize SMALLER, all that happens is the window size changes, in reality the image is still in its original size you opened it as.
However, when you open a window thats NOT at full size, the image is loaded to the Height/Width of the actual window, and as a result when you enlarge it you get black space appearing to the bottom/right of the window.. a solution to this might be either to load the background when the window is at fullscreen, or redo the /background command when you change the height/width.
Eamonn.
