...Thanx for the reply.

However, I went back already and deleted the polygon intended to do the cutting/booleaning and remake it in a slightly different fashion, and that did end up working in the operation. The first time I made half of the object intended to boolean with and then, since it is symmetrical, I mirrored it. I didn't do that the second time around and simple made both sides manually, and that worked...

I'll keep the thread that you replied with in mind for next time, though...