I was playing a 3 player free for all versus 2 easy AIs on the only the map that allows 3 players (1 star, 19 planets, the map says something about centrifugal forces).  I kill the Advent first while in an alliance with the Visari.  Game says I win and ask if I wish to keep playing.  I say yes, and immediately the Visari break their alliance with me.  Fast forward, I take Visari's last planet.  They are still alive.  I take their 2 remaining astroids, and they are STILL alive, putting bounty on my head (that's about the only thing they do).  I put a bounty on their head, and the pirates never launch (I park my fleet right outside the only phase lane out of the pirate cove).  I kill the pirates, and the Visari are STILL alive.  I can still talk to them, propose cease fire, etc. etc.  I have all planets explored and built on, and there are no remaining Visari structures in the system.  Is this a bug?  Is there somewhere I can upload the save game file for SD to take a look?

I am using the latest version -- retail box and downloaded the latest patch (which caused my old save games to be "invalid" -- was that suppose to happen?).