Like mzilikazi said.

Long story short: Had a similar problem with Pango when running Red Hat 8 when trying to get a newer version of Pan (the newsreader) running. Ended up finally just upgrading to Red Hat 9.

Don't have any "magic" advise for you, except to try forcing a downgrade to the version of Pango on your Red Hat distribution CDs, or try upgrading to the next version of Red Hat...which would be, what, Fedora Core?