ok I have did every thing up and to include defeating vladamir and did not recieve the portal stone .I have checked with the stone guide and she has nothing for me?If I have to do this quest again that would be fine but irritating (fix this glitch)but I need to know how to reset it .I still have the quest in my qest book that says find the Portal Stone .I have gone back many times to the deans cell and there is nothing there.I have even tried logging completely off and then back on , and is still says find the portal stone ??Please help .
