Moradin27: Well I'm on the troll trouble quest and in the quest log it tells me to question it's acquaintances. I'm not sure exactly where to go. Sorry if I'm overlooking something obvious.
Not sure what part of the quest you're in as that's rather vague but here's the rough outline on how that quest goes.
1. you get the quest from the notice board
2. you encounter the troll and either kill him (completing the quest) or choose to help him
3. if you help him, you need to find out clues about who killed the troll, the first clue is finding the trolls head, which is hanging in a wall in one of the buildings outside the city walls. Talking with that NPC reveals where he got the head from. You can get the head by beating him on a poker game, although this isn't neccessary to finish this quest.
4. On the bottom floor of the inn, you'll find the person who sold the troll's head and by intimidating him you'll find out where you need to go to find the killers of the troll
5. on the cemetary you'll encounter a group responsible for the killing, kill them
6. talk with the troll who agrees to repair the bridge and stop drinking
7. collect your reward