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Labwindows Debug - Blue Screen pointing to nivvglk.sys

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redseadiver

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Aug 12, 2008, 3:40:12 PM8/12/08
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When single stepping in CVI debug and executing certain vxi instrument functions, I'm occasionally getting an XP stop - blue screen pointing to nivvglk.sys. These functions have worked fine in other test programs.
 
What is nivvglk.sys and where should I start looking?
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