I am using CAD 2007 and Acrobat 9, both of which I have been using
together for about 6 months. I just formatted my computer (for a
separate issue) and reinstalled CAD and acrobat. Now when I use the
command "PDF" or use the PDFMaker i get the following error message:

"Your drawing contains some unsaved data and you have chosen to convert
to Adobe PDF with 3D content. Please first save the drawing and then run
PDFMaker."

If I close the message, save the file, and run the PDFMaker again, no
issues. It works just like it did before. However, it is pretty annoying
to have to take an extra step every time.

As a note, I am not doing any 3D work, strictly 2D. I'm not sure if it
is a CAD issue or Adobe. I have ensured that I am in AutoCAD Classic
model space, and it doesn't matter which file I try to convert, even if I
create a new 2D document.

Any help is appreciated, Thank you!