AutoCAD 2014 won't HATCH

Hi,

I'm trying to use the hatch command to hatch an area. I've followed various tutorials, but when I use the hatch command nothing happens - the area is not hatched. For example, when trying to hatch the crescent area in the image below, I have selected a hatch pattern, clicked "Pick Points"and selected a point within the crescent, selecting it. After then hitting <Enter>, nothing happens; AutoCAD asks me to select the next point to hatch, but the original crescent is not hatched at all.

Image may be NSFW.
Clik here to view.

I've tried altering the transparency, altering the pattern scale, and using different patterns - including solid fill. If it helps, I'm using the AutoCAD 2014 Student Version.

Thanks so much for any help, I appreciate it.

Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.