Recently, in some of my combats I've accidentally hit a key combination that caused all of my user I/O windows (chat, controls, map, etc.) to disappear.
That's not really a bad thing. As soon as it went, my system lag vanished as well, and since I have most of my controls memorized I could still activate those things. Overall I was able to work much more efficiently, defeating enemies in five minutes that I'd previously taken a half hour or more to fight to a standstill (at best).
(Also, it's kind of cool looking; with different shield effects, I could see it being actually shown on TV as a space battle scene in a Star Trek CGI show.)
With some experimentation, I've figured out that I can get out of that mode and return to interacting with my crew and so forth with the ESC key. But I haven't been able to duplicate the key combination that puts me into that mode when I want to use it. Could someone help me out here?