Error message with wavefront.obj file

I get an error message while trying to export a .mesh file to wavefront . obj file. The error message is: "Error loading ShaderTech "T0000" in Shader "Blend".
After the error is displayed the screen closes immediately. I have the latest version of SDK and data site since October 2, 2011. Even when I try to remove the software data, I still get the same error message.
Please, help me.
Thank you.
