I purchased cheap HDMI cables from a hardware store and I'm generally pleased with their quality. However, they sit loosely in the socket, leaving a visible gap of may 2-4mm between the molded plug cover and the socket where you can see the metal connector. I have my Xbox-360 standing vertical and the cable tends to slouch downward in the socket. The connection is loose enough that if the cat jumps on the TV stand or a particularly loud explosion hits the subwoofer, the picture and sound will choppily disconnect - lots of visual artifacts and the like. Usually it gets re-situated in a second or two, but occasionally the only solution is to get up from the couch and wiggle the cable like a barbarian \sarcasm.
Has anyone overcome a similar shortcoming? I'm more than willing to purchase a new cable if you have a recommendation.
The Xbox is a 250gb model purchased in December 2012. I have a Denon receiver, and the HDMI cable also sits loosely here. The problem is almost always been with the xbox connector, though.