I am using Leica Cloudworx, AutoCAD 2006 and Navisworks Jetstream v5.5. When I open a drawing in Navisworks that contains Cloudworx-generated objects (CYFITCYLINDER) they are displayed as very long lines, causing navigation within Jetstream to be very awkward. I can turn off "Convert Lines" in the global tools options, but then I lose the display of all lines. The only thing I can come up with is to write a routine to convert these entities to AutoCAD solids before opening them in Navisworks. Is anybody else out there using Navisworks with Cloudworx? Are you having the same problems?