If you snap an MS Office application window to the side of a screen (full height, half-screen width), then the "End" button (top right, red) is only half-displayed. Clicking on the invisible portion does close the window, however.
DxDiag can be found at the link below. Note that I'm running two monitors with different resolutions (1920 x 1080 and 1920 x 1200).
http://pastebin.com/embed_js.php?i=qyCk2FbK