If AutoCAD will not let you select objects before starting a command, the most common cause is PICKFIRST being set to 0. Type PICKFIRST, press Enter, and set the value to 1. If that…

If Dynamic Input is missing, not showing dimensions, not displaying coordinates, or has stopped working entirely, drafting becomes slower immediately. Instead of entering values directly at the cursor, you have to constantly look down…

If AutoCAD places copied objects at the wrong coordinates, the cause is usually one of the following: Incorrect base point Different UCS settings Modified INSBASE values Object snaps affecting placement Drawing corruption Extreme coordinates…

You run EXPLODE, select a block, press Enter, and AutoCAD responds with: “1 could not be exploded.” Or nothing happens. In most cases, the block is not defective. AutoCAD is preventing the operation because…

You click an object. You click a second object. The first object immediately becomes deselected. Instead of building a selection set, AutoCAD keeps replacing the current selection. In almost every case, this behavior is…

Quick Answer If AutoCAD Trim or Extend is not working, check these items first: TRIMEXTENDMODE EDGEMODE PICKFIRST PICKADD Locked layers Z coordinates Polyline width Drawing corruption Blocks and Xrefs Most Trim and Extend failures…