On 09/20/2013 12:55 PM, Les Howell wrote:
Any ideas on what could be the problem?
Have you tried the Magic SysRq Key?
(
https://en.wikipedia.org/wiki/Magic_SysRq_key) If it works when you
test it, but not when you need it, suspect hardware problems. I had
that happen last year and it turned out that my CPU fan was on its last
legs.