Orca Is the Update-manager accessible with ?

[hermann <steppenwolf2 onlinehome de>]

Hi,
I tried to update my system with the update-manager in
system/administration.
When you check for new updates, you have to enter your password (which
one, user or root?)
When I enter the user-password, the system seems to freeze, and only
logging out and in again brings it back.
Can the update-manager be used with Orca at all?
Regards
Hermann