I feel sure I saw a big discussion thread about the quality and usefulness of Poser prims here, but now I can't find it.

Anyway, this is a render of the Poser Pro 2010 cone. The first render was with smoothing off, the second partial render (inset) was with smoothing switched on.

Is this just down to bad geometry?

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)