System Lockup

[Jeffrey D. Yuille]

Peter Jones wrote:

>On Sun, 2005-06-26 at 00:31 -0400, Jeffrey D. Yuille wrote:
>  
>
>>Hello,
>>
>>     I am currently have Fedora Core 4 installed on a Dell Dimension XPS 
>>T600R desktop and I am experiencing intermitent lockups whenever I have 
>>multiple programs open at the same time (for example, Mplayer, Firefox 
>>and FreeCell Solitaire).
>>    
>>
>
>Time for memtest86 .
>  
>
Hello Peter,

     Thanks for the advice.  I tried to run this command from the 
command line, but it states, "command not found" .  How do I do this? 


Jeff