This is a major issue for us!
We have peepee down to a science in the little potty, but Caitlynn refuses to poop! She will hold it for 3 days or so until she can't hold it anymore, then will blow-out of a pull-up. The other night, she did so much that it came out all over the carpet!
What did you do? I have offered incentive, sat with her while she "tries," offered up a punishment/incentive alternative, and nothing seems to work. Leaving her alone means I get a poopy pull-up. With a new baby coming, we need to get this pooping thing on a roll. I don't want to be changing 2 sets of diapers!