Bug#483909: I can confirm that the description on ububtu bug is correct

[Anton Ivanov]

Bug seems to be specific to using MS Exchange and disabling GAL
autocompletion seems to fix it.	
-- 
   Understanding is a three-edged sword:
            your side, their side, and the truth. --Kosh Naranek

A. R. Ivanov
E-mail:  aivanov at sigsegv.cx
WWW:     http://www.sigsegv.cx/
pub 1024D/DDE5E715 2002-03-03 Anton R. Ivanov <arivanov at sigsegv.cx>
    Fingerprint: C824 CBD7 EE4B D7F8 5331  89D5 FCDA 572E DDE5 E715