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[Colin Law]

On 26 August 2014 17:35, Gary J. Kirkpatrick <garyartista at gmail.com> wrote:
> ...
> Next time it goes will connect to an external monitor.  If the external is
> working and the other is not, then I'll know it's not software.

Not necessarily, a software problem could make one screen blank but
not the other.  But your symptom does have all the hallmarks of a h/w
problem.

Colin