Need help with S3D and supports

[lucidpsykosis]

For some reason, my supports are printing really crappy. They're not the solid structures they used to be. I'm afraid I may have changed something that did it, soooo...could someone dumb-down an explanation of the support settings? What I was trying to accomplish, was a feature I read somewhere that makes the support easier to remove by changing the density near the part...if that makes sense. The pic I included is how its printing; it just tears apart and doesn't separate from the part at all. Just makes a mess. Thanks!