Problem importing dwg files that contain curves?

Has anyone else experienced a problem importing dwg files that contain curves?  The problem is that the curves are distorted slightly from what was originally drawn in Rhino.  If I pull the dwg file back into Rhino it is perfect so I know it's something Corel Draw is doing during the import.  I've figured out that if I export as an AI file the curve comes in properly.  Is there a setting that may help dwg files come in correctly?  I can provide sample files if needed.

Thank you