Not every splitter can remove HDCP. Only some. It's a real problem because right now I am trying to get a PS3 going again. I've established that the HDMI port isn't burnt out because I am able to get it to show an initial screen but not past that point. I have a new splitter on the way, hope this one works before I test other things out. I'm pretty sure the issue is the HDCP is malfunctioning or is corrupted because I hot-plugged the HDMI cable while the unit was turned on. I also notice an interesting symptom, on my monitor when I attempt to get the PS3 going and then switch over to the computer, if I play something that requires HDCP the monitor will flash a brightly coloured static snow pattern before continuing to play. This doesn't happen if the PC and monitor have been powered down. So whatever is wrong with the PS3's HDCP is definitely leaking out into the monitor temporarily.

HDCP is awful. Thanks Intel.