I had Warband version 0.860, and installed the released version today, but once I did that it asked me for my serial. I entered my serial, but got an ''activation denied'' message. Then I tried manual activation, but that too gave 'activation denied'. I have looked on the forum for similar problems/solutions such as the registry, but that doesn't seem to be the problem. At this moment I can still play multiplayer, but the singleplayer is still in trial mode.
I hope someone can help,
Thanks in advance.