See Knowledge Base article 33063 for a workaround. Create a screenshot of the legend in ArcMap Layout and insert it as a picture.At 10, all export formats except PDF work fine. With PDF, the 3d symbol will not appear on the layout. You can use the workaround described in KB 33063 or use the 3d symbols in the civic style. These symbols will export fine.In ArcGIS Desktop 10.0, exporting the map with resolution lesser than 130 dpi would export the 3D marker symbols.