Okay, I went back and read all the past threads, and I can't find a definitive answer. I've searched the web and can't come up with a definitive answer. This board is home to some of the foremost video game experts outside of (and inside of) the industry. Let's see if we can't figure out a FINITE answer to this question.

Does it, or does it NOT, harm your PS2 to play it sitting vertical? I'm running out of room here, and being able to set it vertical would be extremely useful. What's the verdict?