I checked the advanced material section and nothing is plugged in. 
Diffuse Color is white, value 1; Specular color White, value 1; Highlight size 100, Ambient color Black, value .006173; Transparency is 1, edge and fall off 0; Translucence color Black, value 0.  Reflection color has "?" as does refraction color, bump, displacement, alternate diffusion/specular and gradient bump.  Where else should I look?