HDMI cable in RX-V675 always moving around,losing signal If anyone shows up on Shark Tank to pitch a new HDMI CONNECTOR that actually 'locks', and does not wiggle out on its own causing major frustration issues with loosing TV signal, I'll give him or her many kudos....I have a Yamaha RX-V 675 Receiver, and Time-Warner cable, Sony BD player, Samsung 46" LCD HDTV, mounted on the wall, using a Certified In-Wall 12' HDMI cable....Everything is connected to my receiver, and at any given time, we lose signal and get the snowy picture, then I have to reach in the back of the receiver and wiggle so slightly to the right and left until we get the picture back..VERY FRUSTRATING!!!So I called MONOPRICE,and they said that have a 90 degree swivel adaptor that the in- wall plugs into, then this plugs into the back of the receiver. $3.00. Great product, that lasted about three months, but now it's doing this all over again.WHY OR WHY has no one (as far as I know) invent any kind of locking HDMI cable? This seems so crazy, since the advent of RCA Sheathed cables, but HDMI? ....it's 'hincky' at best.I just can't understand how this HDMI cable can move on its own. I know SoCal has had too many Earthquakes lately, and that would certainly do it, but this has happened too many times, even before all these Earthquakes. Do HDMI cables get stretched out over time? It's going to be a hassle to replace the 12' in-wall HDMI cable, so I'm trying to find out as much as I can first.Thank you!