Dealing with co-workers who don’t like you:

Happened to me fairly recently, now we are fairly good work-friends.
Two things that I did:
1) Pay them sincere compliments. The more out of left field, the better. Don’t overdue it, maybe just once or twice a week. It will catch them off guard.
2)This is a tip from old Ben Franklin (I think): Ask for a favor. Ask to borrow something, or something small like that. Not quite sure I understand the theory behind this one, but it definitely works.