Does anybody have any general advice on using Polygon Booleans correctly. I have found them quite tempermental, and I don't know why, which means when I use them it is basically hit or miss. Sometimes it works, but often I end up with the objects just dissapearing. I don't know why this is, but is there any reason I should know, like something I am doing that I should stop. I have read the help files to no avail, and was just wondering if anyone had any tips for working with booleans.

thanks alot

David