On a large drawing, if you pick your selection and zoom in or out (i use the scroll wheel to zoom & pan) the objects will sometimes deselect - and it's quite frustrating. Haven't found a way around it. I'm using AutoCAD 2012 but this has been happening with earlier releases as well.
Access a broad range of knowledge to help get the most out of your products and services.
Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.
Upgrading to a 2015 product? Make sure to check these out 1st!