If you’re using 2007 today, always save down to AutoCAD 2004 .DWG format for maximum compatibility with modern versions.
I’m using AutoCAD 2007 on Windows [7/10/11 – note: 2007 was not built for Windows 11]. I’m running into an issue with [e.g., hatching, plotting, 3D orbit, file corruption]. autocad 2007
Help with AutoCAD 2007 – [Brief problem description] If you’re using 2007 today, always save down