I haven't played GalCiv for a long time now. But from what I remember, if you held right mouse bonnon down while you have a ship selected, it would give you the rout it would take and the time it would take to reach it. Now, I installed the game again and applyed the 1.6 patch and the lines are gone.
Was this supposed to happen? Is it part of the patch?
Also, the lines do show up after you set the destination but not while holding the right mouse button.
Thanks,
GHost117