-query' to see what resources the X server records, and also look at
the user's ~/.Xdefaults and ~/.Xdefaults-* files.
+*** In Emacs built with Lucid cannot display very long popup menus.
+
+Very long popup menus cannot be shown in their entirety, and don't have
+a scroll bar to scroll them vertically. Lucid does not support this
+feature. A workaround is to use other toolkits (GTK, LessTif, etc.).
+
*** Emacs running under X Window System does not handle mouse clicks.
*** 'emacs -geometry 80x20' finds a file named '80x20'.