Some eagle-eyed spectators caught it on camera, clearly showing the error message usually associated with serious software issues or hardware problems in a computer running Windows. Thankfully, this didn't mar the otherwise excellent show. Most people would have missed it with the explosion of sight and sound around them anyway.
Still, it acts as a reminder to future organizers of high-profile shows like this: writing your software in Linux or OS X could be a good option instead.
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