Stumbled upon archwind point after finishing dawngaurd quests and grabbed the word. Later on I decided to go to the greybeards to get some locations of words and after a few words successfully done, they then send me to archwind point to get a word but I already have that one. So now I cant get any more quests from them. The quest marker is at archwind point and the word just stays highlighted in the blue but nothing happens.

Has there been a way to fix this yet on the 360? I don't have a save to revert to