Date: Sunday, 2014-01-05, 8:47 PM | Message # 1
Can't trade with any NPC?
Can't trade with some NPC?
Can't trade with some NPC, mostly special encounter NPC?
If you installed your game, saved it and then updated it, your current save isn't compatible anymore with your game a lot of strange things can happen when you update your game as your still in the process of playing the game, the only way to fix this problem is starting a new game.
WARNING! There is always a possibility that the bug you maybe experiencing is do to another problem with the game, if the following answer(s) doesn't fix your problem, please contact me firstname.lastname@example.org