Don't use Format->Layer Tools->Layer Delete on any of Hydratec's stuff. I fact, I don't recommend using it in architect stuff, either. Here's why – besides deleting everything on the selected layer and the layer name itself, it also redefines all blocks that have a foot in that layer and remove those parts that do. An…

8/19/09 – Autodesk released Update 1 for AutoCAD 2010. This can be downloaded from Autodesk Update 1 for AutoCAD 2010 – It fixes about 200 things, according to the list of changes found on that webpage. There do not seem to be any compatibility issues with HydraCAD at this time. Is has fixed some odd…