A rotatably adjustable mounting bracket for attachment to a display device and a mounting system affixable to mount surface and providing rotational adjustability of the attached display about an axis substantially perpendicular to the principal plane of the display device. The device mounting bracket including at least one set of openings comprising a plurality of openings located in the plate to substantially align with mounting holes located on the display device. Each of the openings having an adjustment portion adapted to receive a portion of the display device fastener attached to the display device and moveable within the adjustment portion to permit rotational movement of the display device relative to the mounting bracket.