I've got a little problem with version 2010, I export an obj out of maya and use that in mb. It is just part of a robot I am working on and wanted to add some dents and scratches. I increased to level 5 (around 4 million ) tried using stamps with all brushes and none work....all I get is a round brush. The only brush that does seem to work with stamps in the imprint brush, but sculpt, spray, repeat etc just don't work. I've selected different stamps and nothing. Scaled up the model and still nothing.
I then opened up a new scene with one of mudbox preset geometry and tried again and all was working fine. Problem seems to appear on my imported objs. The tools by themselves work fine...its just a problem when using stamp image. Any ideas?