I agree with the troubles with the Ubuntu 10.04 and more over there is
a very common problem with Ubuntu is it as you make the system a
little busy by opening 4-5 applications at a time the screen goes
black and the system reboots automatically.

On 8/16/10, Robert Citek <[email protected]> wrote:
> Hello Derek,
>
> On Thu, Jul 22, 2010 at 5:23 PM, Derek <[email protected]> wrote:
>> Given that I am new to the entire Linux thing, (and so used to the
>> Windows atmosphere) I am having slight problems with my O.S.
>
> Welcome to Ubuntu Linux.
>
>> First of all, whenever it idles for a little bit, my screen goes black
>> and starts flashing multi-colored bars. I have Ubuntu 10.04 installed
>> on two desktop computers, and same story for both of them. It seems to
>> be a problem with the Screen saver, because when I tried to edit the
>> screen saver to switch it off, the black screen and multi colored bars
>> came up again. Also, if I have been using this O.S. for over an hour
>> straight, the same story.
>
> Have you gone through the System Test App?  You can find it in System
>> Administration > System Testing.  You can do all the tests or just
> select the ones for video.  That will give you a good indication if
> its a hardware, software, or other issue.
>
> Give that a shot and let us know how it goes.
>
> Regards,
> - Robert
>
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