unable to restart my computer

[Shahar Dag]

----- Original Message ----- 
From: "aikhanlab" <aikhan_lab at bdcom.net>
To: <ubuntu-users at lists.ubuntu.com>
Sent: Wednesday, October 28, 2009 3:00 AM
Subject: unable to restart my computer


> Hi,
> I tried to update my computer for ubuntu 8.04. It needed restart. I
> clicked the restart icon on the upper panel.
> After a second the white round ball with cycling bids froze on a blank
> screen.
> What should I do?
> Can any one please help me.
>
> Thank you in advance for the valuable help.
>
> aikhan
>
>
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try from a terminal
shutdown -r now