Have you ever tried opening a CAD file and the dialogue box doesnt show up? Instead, CAD asks you for the file path of the file which you are trying to open. THIS CAN BE A REAL PAIN! But don't worry, theres an easy fix! The next time CAD asks you for the file path, simply use the command FILEDIA. Set the command to (1), and your problem is fixed. I find that this command is especially useful after CAD has crashed on me and needs to be restarted.