I don't know if someone already posted these, but better once too many than not at all.
1) I was on the road to a cultural victory. I had 14 out of 16 sectors conquered, but the game gave no 'winning message'. Then, the victory-progress in the options window said that I was 12 months from cultural victory. The next turn, I got a screen saying I have to hold my sectors for two more years to win.
2) Somewhat later, before I won, I had all sectors dominated by my culture, and I saved the game. I was then about 4 months from victory. When I loaded the game however, the two remaining sectors with major civs in them, turned to those civs, and I hadn't even started the two years for victory.
3) When I load a game, I get a progress report, saying I am behind in tech, while I was extremely advanced compared to the rest of the civs.
4) Sometimes when I press the 'next turn' button, only the graphs change, but my autopilot-ships do nothing, and also the date doesn't advance. When I press the button again, the things that hadn't happened, now happen, and thos that happened already, do.
5) I don't know if this is a bug, but my playlist doesn't work. I had WinAmp3 export my usual playlist in three different formats: b4s, m3u and pls, but none of them would load. Maybe I'm doing something wrong?
6) When I finished my first game, I got no prompt asking me to upload my score etc. to the Metaverse. Is there a condition to do this?
7) When there is a big body of text, there is a scrollbar besides, but this is invariably set at the bottom, while the text is at the top. This results in very awkward scrolling.