file open button not working :(

This bug report will be sent to the XEmacs Development Team, not to your local site managers!! Please write in English, because the XEmacs maintainers do not have translators to read other languages for them. In XEmacs 21.2 (beta45) "Thelxepeia" [Lucid] (i686-pc-linux) of Tue Mar 20 2001 on rendhalver.dyndns.org configured using `configure --prefix=/usr/local/xemacs-gtk-beta/ --with-gtk=yes --with-gnome=yes' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: the file open button button in xemacs-gtk does not seem to work properly it brings up the open file dialog box but when a file is clicked on it says "Wrong type argument: stringp, nil Recent keystrokes: M-m M-x b u i l d - r e p o r t RET S u c c e s s RET RET a n o t h e r SPC o n e SPC : ) misc-user button1 button1up button1up misc-user Recent messages (most recent first): Loading emacsbug...done Wrong type argument: stringp, nil Loading emacsbug... Sending...done Wrote /home/rendhalver/.xemacs/Mail/SENT Sending... Exit MIME editor mode. Type C-c C-x C-z to exit MIME mode, and type C-c C-x ? to get help. Loading mail-abbrevs...done Loading mail-abbrevs...