zBrush creating unwanted lines on displacement map

Zaubereis

Hi there. If this topic has been covered please feel free to point me towards it as I have googled and searched this forum and cannot find a solution for the life of me. So here is my problem. I have an object with UV maps that look like this:




I create subdivision levels in zBrush and sculpt away, and when I export my displacement map the texture is showing up white in places I have NOT sculpted outwards, the only thing I did to this model was subtract!



And why are all of the light and dark values showing up where I didn't even touch the model?! This is, of course, creating huge problems when I go to render in Maya and I just plainly cannot figure it out and don't have time to paint over every edge of every object's displacement map in this scene.

Zaubereis

Hey there. I realize that my question might sound really silly and simple to someone, but I am pretty new at this, I live in Nebraska and I am the only person at work who does anything 3D at all so forums and google searching are the only sources I have. So please, even if it's just as simple as I forgot to click a specific button, point it out to me as I spent half my work day trying to find the answer and was unsuccessful so I asked here.

Zaubereis

Slightly more acceptable, but would still have to paint out the UV seams...

Zaubereis

I found a thread on that referred to this tutorial which I followed: http://www.youtube.com/watch?v=nGQtNqxvAHc&feature=youtu.be

but that didn't fix my problem, it just looks like this now:

I am desperate here. There is no one in my town that knows this. Please help, my project/job is depending on it. I can't hand paint all of these displacement maps for this project.