Hi Everyone.
Firstly I’d like to say that I’m new here so please be gentle.
I have just started my first project in ZBrush - a dragon. I created the mesh in modo, brought it into ZBrush and started playing around. However I get this warning when I try to add more geometry. Can anyone help??

Also, after this I wanted to add nostrils so I went back into modo to create a couple of edge loops but when it came back into ZBrush there was a hole in the geometry. Any ideas??
Thanks
Muzza
No probs man