rpm core dumps

[Alan Mizrahi <alanml cantv net>]

I get a core dump from rpm almost always, example:

[root@olympus rpm-new]# rpm -e mutt-1.0.1i-6
rpm: ../iconv/skeleton.c:292: gconv: Assertion `outbufstart == ((void 
*)0)' failed.
Aborted (core dumped)


This is the story:
I am using redhat 6.2.
I wanted to update to XFree 4.01 so I downloaded the RPMS from helix, I
tried to install them but I needed the new version of rpm, so I downloaded
the new version, installed it and made rpm --rebuilddb
Then I tried to install XFree but I got this error message that says I
need glibc 2.2, so I downloaded the newest version from Redhat and
installed it, but I couldn't install it as an upgrade because rpm
complained, I just did rpm -i glibc-2.1.91-16.i386.rpm without
uninstalling the old version.

Now I do rpm -qa |grep glib and I get two versions:
glibc-2.1.3-15
glibc-2.1.91-16

I cant erase the old version because I get a scaring error message and a
core dump!
I even tried with the rpm binary provided with the redhat CD, it gives me
the same error.

I can use perfectly any program I can think of (I think glibc isn't
broken).

Please help me.