Omg i had to make a whole acc on the site because this game is full of bugs , i am on Dawnguard DLC at the Soul Cairn i met a green dragon named Durnehviir he gave me a quest to summon him 3 times on Tamriel so he teach me words for a new shout, so i summoned him, the first 2 times he taught me the 2 words of the new shout but when i summon him a third time he just stands there and says thank you for freeing me and runs in the sky he isnt talking to me to teach me the last word and now im stuck with this stupid quest on my list saying '' learn final word from Durnehviir'' is there a way to complete it or remove it from there at least it svcks that its full of bugs.

I am sorry you are having trouble, I will do my best to help, which system are you on, PS3, Xbox360, or PC?

PC but it doesnt really matter what system you use