mc-tool crashed with SIGSEGV in __libc_start_main()

[Kaki]

Binary package hint: telepathy-mission-control-5

1)
kaki@mars:~$ lsb_release -rd
Description: Ubuntu lucid (development branch)
Release: 10.04

2)
kaki@mars:~$ apt-cache policy empathy
empathy:
  Installiert: 2.29.90-0ubuntu2

3)
I can chat again within the ICQ-network.

4)
I can't.

Description:
Empathy didnt login to ICQ so i followed these steps http://live.gnome.org/Empathy/FAQ#I_can.27t_connect_to_my_AIM.2BAC8-ICQ_account_anymore . When i typed in the last line i got a segfault.

console I/O:
kaki@mars:~$: mc-tool update _3xxxxxxxxx0 bool:use-clientlogin=false //xxxxxxxxx=my icq nummber
Segmentation fault (Speicherabzug geschrieben)

UPDATE:
When I type in:
mc-tool update haze/icq/ _3xxxxxxxxx0 bool:use-clientlogin=false

everything works and I can chat again.
ENDUPDATE

ProblemType: Crash
Architecture: amd64
CheckboxSubmission: e67518e39bad86d14b571225dc886146
CheckboxSystem: 4ed15c40009aa6f7770f606350a390a2
Date: Sun Feb 21 12:24:10 2010
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/mc-tool
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100220)
NonfreeKernelModules: nvidia
Package: telepathy-mission-control-5 5.3.2-2
ProcCmdline: mc-tool update _3xxxxxxxxx0 bool:use-clientlogin=false
ProcEnviron:
 SHELL=/bin/bash
 LANG=de_LI.utf8
 LANGUAGE=de_LI.utf8
ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
SegvAnalysis:
 Segfault happened at: 0x409574: mov 0x60(%rbx),%rax
 PC (0x00409574) ok
 source "0x60(%rbx)" (0x00000060) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: telepathy-mission-control-5
StacktraceTop:
 ?? ()
 ?? ()
 __libc_start_main () from /lib/libc.so.6
 ?? ()
 ?? ()
Title: mc-tool crashed with SIGSEGV in __libc_start_main()
Uname: Linux 2.6.32-14-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 mc_account_call_when_ready (account=0x0,
 main (argc=<value optimized out>,

[dino99 (9d9)]

This version is outdated and no more supported