I have problems with rgb.

[Alexandr]

I had and have problems with emacs/xemacs - on the start this programs I get 
Warning: Color name "black" is not defined
Fatal error (11).Segmentation fault (core dumped)

with emacs.

Xemacs runs but without colors...

In the text mode all is OK. 
I didn't no what I must do and change my editor...
But yesterday I get some errors with xpdf 
Warning: Color name "black" is not defined

But xpdf runs and I can read documents.

Anybody can help me???