I've been playing COD2 online via my AirPort card on my iMac, and many people have been commenting on how I look laggy. Someone on the server recommended an ethernet cable for me. Would this speed up my internet connection? I have a 2.5 MB p/s download time, and a 468 KB p/s upload time, so I'm not exactly running ultra high-speeds here. Sorry if I appear ignorant about ethernet; 'cause I am. Thanks for the help!