8.04 still locks up

[elmo]

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?


elmo