I encountered the same problem with emacs 21.4.1 on Edgy (updated from Dapper). The bug report is attached.
** Attachment added: "crash report" http://librarian.launchpad.net/6871616/_usr_bin_emacs21-x.1000.crash -- emacs21(X11) displays boxes for fonts then crashes https://launchpad.net/bugs/81027 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs