Fridge door gasket's bottom corner curling up (not sealing)

I have a side-by-side Whirlpool GD5THGXKS01. I noticed we were getting a lot of condensation inside the fridge and saw that the gasket was curling up on the bottom inside part of the door. There is a huge quarter-inch gap between the lower inside corner and the frame. I replaced the old gasket with a new one but the problem has persisted. I've also tried to play around with the hinge position, but there's not a whole lot of leeway in the screwholes for mounting the hinges. I've temporarily put weatherstripping to try to block the gaps (the white strips you see in the pics), but it's not working very well. The freezer door seals just fine, and the upper half of the fridge door seems fine, too, but it does seem like the problem is spreading and getting worse on the fridge door. Attachment 41937 (http://www.doityourself.com/forum/attachments/electric-large-kitchen-home-appliances/41937-fridge-door-gaskets-bottom-corner-curling-up-not-sealing-fridge-1.jpg) Attachment 41938 (http://www.doityourself.com/forum/attachments/electric-large-kitchen-home-appliances/41938-fridge-door-gaskets-bottom-corner-curling-up-not-sealing-fridge-2.jpg)