1. A video conferencing system, comprising: a multipoint control unit (MCU); and a plurality of video conferencing endpoints, wherein each of the plurality of video conferencing endpoints is coupled to the MCU; wherein each of the plurality of video conferencing endpoints is operable to transmit a video image to the MCU; wherein the MCU is operable to receive each of the video images from the plurality of video conferencing endpoints and generate a composite video image; wherein the MCU is operable to determine coordinate information for one or more of the video images in the composite video image, wherein the coordinate information includes information indicating a size of the composite video image; wherein the MCU is operable to scale the composite video image into a scaled composite video image; wherein the MCU is operable to transmit the scaled composite video image and the coordinate information to at least one video conferencing endpoint of the plurality of video conferencing endpoints; wherein the at least one video conferencing endpoint of the plurality of video conferencing endpoints is operable to receive the scaled composite video image and the coordinate information, detect an actual size of the scaled composite video image, and use the information indicating the size of the composite video image and the detected actual size of the scaled composite video image to determine new coordinates of one or more video images in the scaled composite video image.