Conceptstation display issues

Using Version 10.00.05.99 with Windows 7 Professional. Importing from local files or using GeoCoordination Services all successful. When displaying, no terrain or image displays, area required about 1km wide. Tried using xml file for terrain, same result. All tools are present and working. Display is on Maximum window, about 20000km wide. Hitting Fit stays with maximum window. Graphic drivers updated. What am I not doing?