Comment 7 for bug 2047379

This issue did occur on

- dell [optiplex] 780 (c2q-q9400, 8gb, amd/ati cedar radeon hd 5000/6000/7350/8350)

(dc7700 & d780 use same screens; one impacted the other isn't, so likely unrelated to screen proportions; though that feels unlikely anyway)

the wallpaper image appeared on 16:10 screen; the 3:4 screen was black on this box.. the wallpaper image was tiled (different resolutions possibly) and looks weird, but i don't care. Four wallpapers appear partially (top left is full).

On hitting ALT+TAB the try/install dialog appeared; it was full screen (not showing only on top left corner wallpaper, but across the background(s))