I really like NOVA. It's quite playable with the keyboard, but there is a bug... On the level "The Celestial Citadel" you have to crack an alien computer, but the dots that you are supposed to move disappear into the top-left corner, making it impossible to crack it. I clearly see the dots, but it makes it impossible to crack the code. Is there any way to fix this? I doubt that it's regular behavior.