I just purchased my first Pioneer Elite Pro-950HD along with a high-end wall-mount that tilts and pivots left or right. However I noticed that behind the Pro-950HD there are three holes in which you use to mount your Plasma. But on the last hole (closest to the bottom) there's a protruding screw just to the left of the hole that is preventing the bracket from the wall-mount to be completely flush with the back of the plasma. Have you noticed this? I tried unscrewing this bolt and it didn't seem to harm the plasma but I'm wondering if this bolt is needed. The manual doesn't say anything about this so I've come to you guys for your advice.