Smileys don't get displayed :(

[Rafael Villarroel]

How could I debug this situation?

Faces and X-Faces display just fine.

gnus-smiley-file-types's value is ("xpm" "pbm")
gnus-treat-display-smileys's value is t
smiley-data-directory's value is 
"~/site-lisp/gnus-5.10.2/etc/smilies/"

ls ~/site-lisp/gnus-5.10.2/etc/smilies/
blink.pbm         dead.xpm    frown.xpm          sad.pbm    wry.pbm
blink.xpm         evil.xpm    grin.xpm           sad.xpm    wry.xpm
braindamaged.xpm  forced.xpm  indifferent.xpm    smile.pbm
cry.xpm           frown.pbm   reverse-smile.xpm  smile.xpm

thanks in advance,
Rafael