i am transferring autocad files from my computer which is running autocad lt 2007 to our clients computer which is running autocad 2000.  I Purge then audit the file and then save it as a autocad 200 dxf. , then send it to them.  Some of these files work while others give a error message that reads.
in HATCH starting at line233366:
Error: degenerate hatch vertex data
invalid or incomplete dxf input -- drawing discarded.
 
Does anybody know how to correct this problem, so that she can open the file and view it.?
 
Thank you for your help
 
Brian

I would recommend converting DWG file formats with the official Autodesk DWG converter (free) - "DWG TrueView 2008", not over DXF.