update-manager crashed with AttributeError in call(): 'Terminal' object has no attribute 'fork_command'

oh-fu... no! Now I have more information.. I was trying to uptade VM Virtual Box to new version and Software Manager informed me that I have no internrt cinnection (I really had some problems with my WiFi, but not because of OS)))
After that I was trying to update and update-manager given me this crush...
Apt-get update works ok, but when try to upgrade, she says next:

mk@mk-eMachines-E510:~$ sudo apt-get upgrade
Чтение списков пакетов... Готово
Построение дерева зависимостей
Чтение информации о состоянии... Готово
E: Пакет virtualbox-4.0 нуждается в переустановке, но найти архив для него не удалось.

ah, fuc.. sorry, it's in Russian... =)
so it says that virtualbox-4.0 need to be reinstalled but no archive can be found... sad, isn't it?

More sad is that I even can't open synaptic... When I attempt, I have:

E: Пакет virtualbox-4.0 нуждается в переустановке, но найти архив для него не удалось.
E: Внутренняя ошибка при открытии кэша зависимостей (1). Пожалуйста, сообщите об этом разработчикам.

First error is the same, another is that he can not open the cache of dependencies (or smth like that...)
So I've nothin' to do... HEEEELPPPP!!!! =D

Sorry for my sad english...
Best wishes,
MK))

This bug was fixed in the package update-manager - 1:0.152.11

---------------
update-manager (1:0.152.11) oneiric; urgency=low

  * DistUpgrade/DistUpgradeViewGtk3.py:
    - use vte.for_command_full() instead of fork_command() as
      fork_command is no longer available in the gir-2.90
      (LP: #808738)
 -- Michael Vogt <email address hidden> Tue, 09 Aug 2011 15:27:46 +0200