I do love Poser, but I'm a Daz-ite... and displacement settings don't transfer over without a little help. Daz mats are included for all the props that need something a little different to 'ARGH!! GLOSSY!. You really won't see a difference in the preview screen, but by 'eck they come into their own on the render.
Poser users, don't worry - the one marked 'default' doesn't look like that in Poser, just if you default load it into Daz. Don't forget to tick your 'render with displacement maps' setting though.