Dialog boxes close as if Return key was pressed
I've had this problem for a while in both Illustrator CS6 and CC15: at random times, the dialog box will close as if the Return key was pressed.
Any time a secondary dialog appears, such as when doing a Save As, deleting layers that have artwork on them, saving as PDF, or trying to close without saving changes, sometimes the dialog will close by itself with the default option selected as if I'd hit Return, other times it doesn't.
Any idea why is this happening?