GE side/side collects water at freezer bottom - no clogged line?

My GE side by side Profile was leaking water to the front from the freezer door. I had assumed the drain hole was clogged because of ice build up at the bottom of the freezer. Not the case - I can pour water through the drain and it reaches the pan fine. However, since the drain hole isn't exactly at the bottom of the freezer but a half an inch up on the back wall of the freezer, the water can't flow into the drain and forms ice below the drain causing defrosted water to flow out the front rather that intothe drain hole. Is this a design problem or am I possibly missing a part? I have raised the front of the freezer as high as possible to slope the hole back farther, but that isn't solving the problem.