Ragnarok-X, I had that problem with colony ships to. Try this idea to fix the problem.
Vehicle Size File:
Colony Ship
Requirement Pct Colony Mods := 0
AI Design Creation File:
Colony (Rock)
Num Must Have At Least 1 Ability := 1
Must Have Ability 1 := Colonize Planet - Rock
[ May 23, 2004, 12:41: Message edited by: TNZ ]