Hello! I recently installed R2014a on a new Windows 8.1 machine, and I am running MatLab with an external display attached (VGA). Whenever I open the context menu -- whether in the main window or, say, in the editor -- it resets the size of ALL Matlab windows to a small corner of the active screen, all text becomes tiny and unreadable, and the only way to revert is to restart MatLab. The issue ONLY appears with an external monitor attached.
Incidentally, if this is of any help, this same weird tiny screen-in-a-corner effect appears when I use screen capture capability of Microsoft OneNote. Normally it dims the screen and lets you select a region to capture; but with an external monitor attached, on each of the two screens a dimmed and smaller copy appears only in a corner - the same corner where the MatLab window ends up. Seems like it's an OS issue, something about the handling of the display size/resolution. Any suggestions, or should I take this up with Microsoft?