Okay, now I'm not happy any more. I designed and used Netfabb to clean up a set of 4, 12-toothed herringbone pinion gears that I have successfully printed many times on the August 2009 release of Skeinforge. Here is what they look like in Netfabb for Rapman Basic.
Here's what happened when I ran the gcode and "printed" them.
I think it's pretty clear that the raft technology that Netfabb has designed does not work for small, detailed objects.