The recent scans of acad 2010-2009 versions etc. the unnecessary drawing by the person working on the architecture extends the import time. If you bring the processor power to 100% in the Vista operating system, it will heat up a bit, but its speed will increase 2.5 times. I believe it will work faster if this is done in idecad. delete empty layers command should be developed (except idecad orj layers and-or we should see the unused layers with a list option (with a command like layer edit) maybe the architect knows, but for static layer furnishing layer is unimportant..), I change the layer and now I put the whole architecture in the aa_architecture layer, I block it and turn it on and off as I want. (again, a suggestion - to see the layer I want in a faded state as in the sketch mode, freeze it and work on it with ctrl, but normally it doesn't hold any ends.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This is how I'm working at the moment) this is a real XP vista types machine ram cpu etc ...it varies a lot. The import time sometimes takes 3 seconds, sometimes it takes 30-35 minutes and the user thinks that he is waiting and locked. We always see the dwg creator working in the origin or the acad file full of flying objects, unfortunately, we cannot tell the drawer what we want, so we have to do the idecad object fragment, erase and move with scale (on a machine without acad), I think if questions are asked to increase the speed during import eg:[ Should /b] be taken to the origin-how many times it should be reduced or enlarged(the scale will be understood in 1-2 tries)- should it be converted to a single layer (not standard)-to a single color-remove the scans.... after all, like idecad We use it and it uses almost all cad functions as if someone with idecad bought it in autocad. on top of it using architectural or static aspects. these are undeniable successes, I think, with our constructive support, better versions...good work.