While trying to design a model which is all steel members, the following error pops up; SteelCollection.dll not registered. I have included a snipping of the error window. Any help would be great. Regards, Scott

When running the STAAD, the result shows everything is right,. Structure is stable, no warning. Displacements are limited. BUT, I get some funny numbers for rotational displacement e.g. 533 degree & sometimes more. I checked releases. I believe they…