I'm working on a project I started in AC9 and have imported into 10, along with the Plotmaker file, and I'm running into an odd problem. Whenever I look at something in the 3D window and then try to go back to the 2D window, the entire 2D drawing has disappeared, and I can't figure out how to get it back.
Anyone have any idea what's going on here, and how to fix it?
TIA.
Wendy