Hi Linux guys ...
Segmentation fault while opening yahoo messenger is a known issue ..
Just follow the steps ... I can assure you it will work ....and in fact this is working ...
1. Create one new user account .
2.Login with that account .
3.Open a terminal.
4.type su and login.
5.Type rpm -e ymessenger
6.go to /usr/bin and delete all yahoo entry .
7.go to /opt/ymessenger and manually delete the folder.
8.now install the ymessenger rpm pckg..
9.go to /opt/ymessenger and run the ymessnger file
It will work and it has to work ..in case of any issue just get back to me at firstname.lastname@example.org