8.04 still locks up

[elmo]

Carl Friis-Hansen wrote:
> elmo wrote:
>   
>> I thought that I finally had a UBUNTU 8.04 that doesn't freeze and 
>> lockup but no, after downloads from different sources, the same old 
>> problem ...it works fine for a up to half hour or so then suddenly, the 
>> cursor locks and there's nothing I do can free it other than turn the 
>> computer off and back on and start over. 
>>
>> I've tried trial and error combinations of keypresses to loosen up the 
>> cursor....no effect.
>>
>> I restart 8.04 and try repeating what I was doing when the freeze 
>> occurred but it doesn't freeze again but it freezes when I'm doing 
>> something completely different.  There's no consistency to the 
>> occurrence of the freeze.
>>
>> I've tried installing 8.04 on different partitions but ........same problem.
>>
>> I have 7.10 installed both on a regular hard drive partition and also on 
>> an external hard drive and it works perfectly.
>>
>> The only conclusion I can make is there's some defect in 8.04.
>>
>> Does anybody have 8.04 that doesn't freeze?  What's the secret?
>>     
>
> I have around 20 computers with Ubuntu 8.04. All these computers used to 
> have 7.10 or 6.04. Two of the computers got the same problem as you 
> describe, after upgrade to 8.04. The two computers freaking out were 
> both with PCI wireless network card.
> To solve this problem I swapped these PCI cards with USB Air Cruisers.
>
> I think I filed a bug on this, but I am not sure. As you, I could not 
> reproduce the failure in a consistent manner. I just wonder if your 
> problem is related.
>   

All I have is just a computer, no wireless or network.