Next problem :-(

On Mon, Oct 04, 2004 at 08:59:42PM -0400, Ted wrote:
> Having solved my previous problems I now find if I leave Ububtu running
> for more than a couple of hours the machine completely locks up and
> although the screensaver is running ok I cannot get into the box...
> I have tried ctrl alt F1 but nothing happens and a ctrl alt del will not 
> shut the box down so I have to do a hard reset.....
> Anyone else had this problem....And solved it ??
>
Maybe a overheat problem? that only happends with Ubuntu?