I got the game on uplay just recently and when I started the game for the first time it was in 3D (blue and red.... nearly looked like green on the menu). Please help me! I can't play the game otherwise! ;n; Oh, and when I contacted ubisoft they said the game wasn't compatible with 3D but I've seen people play it in 3D..... Meh... Also, I haven't played any other uplay games but the games I got on my computer (including AC3) does not appear in 3D.
If using nVidia graphics card:
Try pressing: [ ctrl+T ] during game play.
Glad to have helped. Enjoy your gaming.
Thank you so much, it worked! ^^