User accounts not accessible

[Donny George]

Hello

I have an ubuntu 8.04 client installed and have a first user admin1 and
second user admin. my problem is that i cant get the acces to the synaptic
user account manager as i want to delete one of these users. it only
displays a window which says

Could not authenticate
An unexpected error occured

and this is the error message for both the users

could some one help  as i want to delete the user admin1 and give the user
admin administrator previlages, is there a command line statement to do this
?



-- 
Donny George
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