I have a part which has now decided to only display, when shaded, with the color black. I say decided as this wasn't always the case. The display color is OK when the part is shaded in an assembly and can be changed there (for the assembly only). If the part is rolled back to the first feature the color is still black even though a thorough investigation shows no faces or feature having that color assigned. the system default 191/191/191 appears on everything I have found.
I would appreciate any insight as to where/what to examine. This is in2006 with all SPs installed.
Merry Christmas and/or Happy Holidays to all.