I just obtained a PCL-300, along with the software, manual and everything I need. The software appeared to install well and the PCL-300 is recognized by the Windows XP computer. My question is this: The 8-pin plug on the PCL-300 is supposed to have one of the 8 pin sockets plugged (blocked) so that you are prevented from connecting it in the wrong orientation. On the unit I got, this plug is missing so I can't tell which way to plug it into my MX-650 remote. I don't want to try it without knowing and take the chance of damaging either unit. So I'm asking a favor: For anyone who still has a PCL-300, could you look at the plug. It is rectangular, and will have an arrow molded onto one of the two edges. Can you tell me if the socket that is blocked is near the arrow edge of the plug, or the opposite edge?