Unable to import .shp file multiple times

[afine1]

Hi.  I'm using Autodesk Map 3D 2006, it's a new install.  I am trying to import an ESRI .shp file with the object data, but have only been able to successfully import it once.  When I try again (even after restarting the program), I keep getting 0 objects processed and no linework imported, even with new drawings.  I also got 2 error messages at one point: 1900 - about having coincident points and a can't transform object error.  I have been looking for any information to explain these errors more and how to fix them.  Has anyone else run into this problem and have a fix?  Any help would be greatly appreciated.  Thank you.

[Murph_Map]

Look in the folder that has your shp,shx, and dbf files for that shape file and see if there is an idx file, if so delete it and try.