After working with ZModler I click on Dynamic Subdivisions and I get mesh contains edges that are shared by more than two polygons. Then mesh integrity failed. Please fix mesh and try again. Not sure what to do next.
Help
Mark Tabibian aka weatherman
Click Fix Mesh 
Dammitall Doug, tell him WHERE!
WeatherMan:
At the bottom of the Geometry Palette Look for MeshIntegrity.
There are two buttons in there, use the second one.
More often than not this will not fix the problem in the way you want it fixed and will produce holes and other weirdness, but sometimes it does the trick.
If you wind up with holes you can use the Close Holes button, also in the Geometry palette, but under Modify Topology.
Its best as Angusmac said in the 4R7 trouble shooting thread to check constantly by going back and forth between normal view and Dynamic Subdivision, that way you can catch this stuff before it gets past the point where you want to UnDo.
Thanks a ton Doug!
Thanks MealeaYing! You were right I could not find it until your response.
I threw a bunch of polygons around until I got the that message. Followed your directions and it fixed it quite well.
I will go back and forth more often to catch the problem quickly. ctrl-z has become my friend in the Zbrush world.
Again thanks you guys are great!
Weatherman:D
:lol: If Doug were a super villain, he would be Captain Cryptic.
LOL; At least I gave him the correct terminology, he could have searched from that point or might have found the solution on his own by then.