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Sam Goldwasser wrote:
(LASERandDVDfan) writes:

A bad video card can damage the high voltage sections on a computer
monitor if the card cannot deliver the video signal at a compatible
scan rate. - Reinhart

Yes indeed, at least on some mostly older monitors. However, the usual
symptom will be a dead monitor, not arcing.

Wow, a flashback! Those old Herc monitors plugged into
a VGA card....

Ken