Question about Dell Computers & Internet
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the screen has begun vibrating and is very hard to read.
it sounds me that there is some sparking in power supply or high voltage section (FLYBACK) due to loose contact,
your problem of shut off, I would turn it back on and it would stay on
.might be also due to that only.
please call tech if you are not a tech person.
it is not a major one & simple to fix.
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