I have been usin Blender for about 1.5 weeks now: I have gone through some tutorials, and I can not figure out how to solve a proublem with my subsurfaced models creating sharp, uncurved edges. I think it was caused by deleting vectors from a subsurfaced model I was creating, but basicly a simple imaged of what it would look like would be: take a sphere, subdivide it once, then delete the bottom four(out of eight) boxes. The result would give you a half circle. Is there any way to recalculate the subsurface so that the subsurface is not cut like that, and the four boxes would be ovalish. I have been working on a model of a head for about 4 hours now, I am on the nose, and I would rather not have to start all over on it. Thanks!
P.S. I would post a picture to make this easier to understand, but I do not have a website to link it from.