Just upgraded to 2015 premium. On opening a point cloud, format .xyz, I click Scan to 3D and then open the .xyz file. It opens and I carry on. BUT, if I close that file and try another .xyz file, same way, it gives an error and says 'File locked or incompatible.... etc" I have to close SW and reopen it, and then this error is gone. Cost me many hours of frustration.