Help with Dragon Age Origins: Ultimate Edition Return to Ostagar DLC

Hi, i recently purchased dragon age ultimate edition and am having trouble with dlc. Every single one works except Return to Ostagar. I install it, no problems, but when I go into the game, I don't get a new quest, and I don't get a new region on the Map... Do I need to install it in a specific way? Does it require any event within the game before the actual dlc starts? Are there ANY solutions to this? It kinda sucks that it's the only one I can't play... Any help wiill be greatly appreciated. =)

P.S. I've already tried re-installing the DLC itself plus the game. Same thing happens.

I don't have it but as far as i know, you need to be past Ostagar/Lothering and i believe that the quest was initiated by a NPC either at the camp or in a random encounter.

..Thanks for replying but that isn't really the problem. I know how and when que quest starts. I've passed Lothering. My problem is that it DOESN'T start. All the other DLC's activate except that one, and i do not know why. Thanks anyway, I appreciate you trying to help.

I didn't activate it, no. Then again, i didn't activate any of them, i didn't even know it needed activation, i dunno if that's the problem, but, hey, i'm willing to try anything, how do i do that?