Hey all those guys having this prob I had this problem too but managed to solve it. After i installed "rh9.ymessenger-1.0.4-1.i386.rpm" it ran only once. Every time afterwards i received the message "Segmentation Fault".
I am a KDE user on RedHatLinux9. Also i prefer bash on GUI and always use Konsole to start ymessenger. This is what i did to handle the prob. It worked with me. Try it & it might work with you.
1-> uninstall the ymessenger here is the command
#rpm -e ymessenger
Incase this command doesn't works for you or you are having
problem uninstalling it, just delete the "ymessenger" and
"ymessenger.local" files in /usr/bin and move to step2
here is the command to do that
#cd /usr/bin
#rm ymessenger
#rm ymessenger.local
2-> Delete the directory "ymessenger" in /opt
use GUI to do that or Konsole. Here is the command
#cd /opt
#rm -r ymessenger
keep pressing y to acknowledge the delete process
3-> Delete the hidden directory ".ymessenger" located at /root
use GUI. Simply go to /root and from view check the "show hidden
files" option. select the directory and del it.
4-> Ok we are done. now install ymessenger again. Move to the
directory containing the .rpm. Here is the command to install on
Konsole
#rpm -ihv rh9.ymessenger-1.0.4-1.i386.rpm
if this fails to work try -Uhv instead of -ihv in above command
#rpm -Uhv rh9.ymessenger-1.0.4-1.i386.rpm
5-> After the installation procedure, just type "ymessenger" and there
you go. type "ymessenger" any where as the shortcut for it's
binary file is added in /usr/bin. Just type "ymessenger" whereever
you are and with a little luck you'll be enjoying chatting with
you friends. ENJOY !!
Muhammad Majid