I am using Draftsight Free. The model I am working on is a huge area 2500' x 2500' so I zoom at large scales. Lets say  I create Entities like a Ring, or a Rectangle complete with chamfered corners. When I save and close the drawing and reopen, the entities no longer have a smooth arc, rather look like  a polygon with multiple sides. I could upload something to clarify. Yet when I create a plain old Rectangle, Explode it, and manually Chamfer each corner, there's absolutely no problem. Is this a technical glitch or are there settings that can be changed?

I appreciate your help.