Holding down N or Z freezes all action in the game for as long as I hold the button down. Well I suppose today's achievement of the day is broken. Lovely.
Everything was going fine until I made the mistake of clicking 'auto-target' on the asteroids list and now I'm stuck at Astrox with my engines firing up repeatedly, but only part-way. Which means I get nowhere.
Yay there's a couple hours of flying painstakingly slowly from place to place wasted. Not even worth starting a new game. :|