THIS COMING MONDAY ON MOTHERBOARD 4/27 www.vbs.tv/motherboard The world of competitive gaming is hardly a recent phenomenon. From the minute Donkey Kong stomped apart his first ladder, there have been hordes of individuals (most of the them male) clambering over one another for alpha dog status; using theoretical mathematics to game the system, disputing the authenticity of their nemeses high-score videos, and generally taking video games about a million times more seriously than most of us considered possible.   Watch exclusive material at www.delllounge.com