So there are two things I can think of at the moment.
1) Go to 'Plug-Ins > Material > Material Manager' select Primary Texture from the drop down and make sure each component has a texture file associated with it. Adding a texture file at this level will not fix the problem, but it will give you and idea which component needs attention.
2) Go to 'Plug-Ins > Material > Fill Untextured'. You must have a default texture loaded to use this (a cropped texture I hope). This will flood fill all the components that are untextured. Its a brute force way to fix the problem and it usually causes more work than its worth (I like option 1 best).


