In Revit Architecture 2009, you may find a problem with 3D view (non perspective view). It would appear as half shaded and half wire frame (as attached).
This is because of a bug within the display of Revit Archietcture 2009. This also happens with AutoCAD 2009 as well. However, there is any easy way to solve this problem. Just delete the 3D View and goto View menu and choose New then Default 3D View. Voila! The 3D view appear as normal now.
Currently residing in Kuala Lumpur, Malaysia. Have been using Revit since year 2002. Have use AutoCAD since version 10. An avid explorer of new technology. Always looking for an easier and more efficient way to work and share.