DXF file opens/imports but is unrecognizable

Hi. I need to render a drawing created in AutoCAD. I have saved it as a .dxf but when I open or import it in Draw there is just a bunch of lines that do not look recognizable from the original file. It looks like spaghetti, basically. I know it can be done because I've imported files before, I'm not sure why I'm having problems this tie.

For the record, I am using Corel X5 and AutoCAD 2004. I know, that is old software. But I've tried using files saved from 04 and I've also uploaded and downloaded from AutoCAD 360, which I have found tends to iron out problems with conversions between software.

Any idea what's going on? I don't think I can post the file here but if you email me at sarcoguy@gmail.com I could probably forward you a copy so long as you won't circulate it any further.

Thanks.