NIC stopped working out of the blue and required reseating before working again. Cause?

I was working on the computer when all of a sudden a "a network cable is unplugged"-message popped up. I was listening to music with Winamp at the time and I noticed the sound also became garbled for a second right then.
I checked the network connections and the NIC just said "disabled". After a reboot the NIC wasn't even in the list anymore!
I reseated the card and magically enough it started working again..

What could have coused this? Power surge?
NarogAsked:
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Irwin SantosComputer Integration SpecialistCommented:
it could be that your NIC wasn't seated firmly in the first place.  Sometimes humidity/weather/heat can lead to expansion of the contacts...and therefore will eject the card slight enough that it no longer has 100% contact.
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Chris BRetiredCommented:
and music pumping causes vibration which can lead to the same effect.

Chris B
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NarogAuthor Commented:
Thank you, that certainly seems plausible.
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Irwin SantosComputer Integration SpecialistCommented:
cool. thank you!
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