1. A computer system for facilitating target acquisition on a display system, the system comprising: an input device; and a display system including a monitor for displaying a plurality of targets and adapted to display expanded targets; wherein the computer system, upon detecting an event to expand targets displayed on the display system: generates a plurality of expanded targets for temporary display on the display system, such that each expanded target does not obscure or does not move another target; determines, among the plurality of expanded targets, and undersized target whose are is less than a predetermined threshold, and, when the undersized target is determined; increases a weighting associated with the undersized target; and adjusts the area of each of the expanded targets according to weight distances of pixels, wherein a weighted distance of each pixel is determined based on a weighting associated with an expanded target and a distance between the pixel and the expanded target; and temporarily displays the expanded targets on the display system.