Have you recently purchased School Days HQ and found that there is an ongoing issue of video blackout while playing through it? Despite being released almost a year ago internationally, Jast USA have investigated and responded to the issue and put it down to a recent Windows update – KB2803821 (Windows 7) or KB2834904 (Windows XP/Vista).
While there is no word on a patch to fix this just yet, the company have offered a workaround available via their official website HERE.
Yet to play School Days HQ? Read my review of the title HERE. Do note that as with many JAST USA releases the visual novel is 18+ and not recommended for people younger due to its persistent eroge content.