If it only happened the once then its fine, a service isn't going to really sort anything out.
It can happen any time, its windows just being a pain as normal.
you will be told it can be this or that, but until it dies you cants say for sure what's gone. There are a few components to your screen. Wait for it to go pop then you will know which bit needs fixing.
my pc does that black screen thing every 3 months, but i know its windows playing funny games. Buy removing all the power you have given it a bit of a reset.
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Wow Wirral History is coming along Great! Wirral History
we get +200 new members a month now