Hi i have recently had an issue crop up , my game has worked without issue since release but now for some reason certain dialog wont play, generaly quest related dialog, as an example while speaking to skjor when he gives you the quest to find a fragment of wuuthrad his dialog will play up until i ask for details such as the "what is wuuthrad?" topic then his mouth will not move and no sound will play but subtitles will still show. I have had this happen while speaking to many important quest related characters such as legate Rikke, general Tullius, skjor and a few others who's names escape me at the moment. i have tried a clean install of skyrim including deleting the whole skyrim folder and starting fresh but the problem has persisted. Does anybody have a clue what could be causing this issue? or know how to fix it? if there is a way to copy my mod list and paste it i would like to know how to do so as typing it manually would take me a considerable amount of time if it is needed. thanks for your time in reading this.

This sounds like you're using the unofficial patch without the latest update.

Ah i wasnt aware there had been an update, ill try and find the new version, thank you.

Get it here:
http://www.darkcreations.org/forums/files/file/289-unofficial-skyrim-patch/

Yes that did the trick. thank you very much Fragonard

You're welcome and by the way, welcome to the forums too.