HDMI connectors unreliable?
We had a could of classrooms refitted over the summer with HDMI AV setups (PC HDMI out to HDMI switch to HDMI wall plate to HDMI projector) and we are seeing problems where the connectors will move a little cutting the display. It seems the slightest movement of the console or brush past the wall plate will affect the setup where as the DVI / VGA connectors screw in and stay put.
I have thought about hot-gluing the connectors at the sides but don't know how effective this would be on the metal wall plate / back of a PC.
Is anyone else finding this? Any other ideas on making the connectors teacher / student proof?