I recently purchased the above screen and a B Tech BT8500/8000 wall bracket fixing. However, I cannot find any instructions regarding which screws I should remove from the back of the screen to enable to fix the mounting plate. I contacted Hitachi and they claimed the 5th ammendment saying they were not at liberty to divulge that information for fear of being sued, (crazy). I then contacted B Tech with virtually the same response. As a last resort I tried to contact the supplier 247 electric but call just rang out. Has anyone out there encountered a similar problem? If so can you tell me how you resolved this problem. Thanking you in advance. Have also encountered another problem with the volume control. Sometimes, when adjusting the volume, the button seems to stick with the result that the volume either goes to maximum or to minimum depending upon which way I originally pushed the control. Any advice please?