Just had to do a correction of a mesh I'd already installed into Poser -- thought I'd screen-shoot the settings I use from Poser4 to Carrara3 to fix a mesh problem, then back to Poser4.

One important note; despite what the Carrara checkboxes say about materials, it will mess them up bad. In the case of this object, a single-group prop with a dozen different materials, I used find-and-replace in a text editor to turn all the "usemtl" statements into "g" statements. Once it was fixed up, I just reversed the find-and-replace.