Griffin2015: I built jump gates at two of my colonies but when I try to send ships through the button for "jump" is grayed out. Tried with colony ship, troop transports, and regular ships. None would use it. Anyone run into this?

Interesting side note: long after the terrans were eliminated from the game, their ambassador shows up and threatens me after I used biological weapons on the silicoids. Neat trick! Guess he was a ghost.