Maybe the cable's not connected firmly to the card.... or that one of the pins at the end of the cable broke. It happens when you remove your monitor from the card fairly often.
I guess Shiori's hair looks kinda yellowish, eh?
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"...And when I finally meet you again, I want to ask you - have you found what you were looking for? Because that's what I felt you were doing, all these years. And I want to hear you answer, "Yes, I have, thank you for asking," and we'll be together again, until the end of our days..."