firefox 3 not starting RHEL ES 4

[Tangren, Bill]

When I recently upgraded all my RHEL ES 4 servers to the latest minor
version (don't remember what the number is right now, but think it is
6), firefox stopped working for users, but would still work for root. I
saw the thread about how it could be an NFS lock problem, but I don't
use NFS. This is the error I get when I try to start firefox from the
command line:

/usr/lib/firefox-3.0.1/firefox-bin: error while loading shared
libraries: libpangocairo-1.0.so.0: cannot open shared object file: No
such file or directory

But I have pango installed.

This error is all over the internet for various OS's like Cent OS and
Debian, but I can't find a solution. See this link:

http://support.mozilla.com/tiki-view_forum_thread.php?locale=fr&forumId=
1&comments_parentId=73375

as an example. The comments in the NFS thread indicated that it might be
a permissions problem on the ~/.firefox directory, but the permissions
are 775 in the example I give. Does anyone know what might be the
problem?

---
Bill Tangren
U.S. Naval Observatory