He nods, grudgingly. "I asked someone at the school to take a look at it, but didn't have any luck." Actually they couldn't even find the program when they looked, but it had popped back up again. He's not sure how that works, but it must be a very advanced sort of virus. Either that or a particularly intelligent student of his played a very complicated prank, but he'd rather not accuse and that seems especially unlikely if Rob wound up with the same thing.