Exporting DXF for Illustrator CS5 -- All I get is text

I'm looking to export some simple 2d shapes to a .dxf for later use.

As a first step I need to pull the into illustrator CS5. However, when I try I get a screen full of text.

I found this thread: http://processing.org/discourse/yabb2/YaBB.pl?num=1254202279

But it does not really address the problem.

I know that dxfs are for 3d and I'm doing 2d, but pdfs won't work for other reasons.

And I know that Illustrator can read dxfs just fine.

Any thoughts?

Thanks in advance!