Hi,  I'm trying to draw a 3d cone with a closed end, and keep running into the problem where the base of my cone looks a little jagged.  I don't think it's the resolution, but I can't figure out what else it could be.  I attached a picture, you can see the dovetailing at the bottom of the cone where it reaches the disk that forms the base.  This is all I'm doing to create the cone using my display list:

1.   glu.gluCylinder(quadric, 2, 0, 5.0f, 20, 20);
2.   glu.gluDisk(quadric,0.0f,2.0f,32,32);
   

Thanks.