What button have i pressed
 

I just leant on my keyboard and now I have no display. No guages, no officers, no sidebar. How do i get it back, im mid patrol. Using Rub if thats any help.

NumPad .

:)

Ah thanks, the game looks good without any display, ill use that more often now.

If you're like me, you will find yourself using that key a lot to make night attacks - taking off all the (rather bright) HUD elements helps you see much better through the UZO or periscope - just don't forget to turn that stuff back on when you actually want to do something :)