Ok Guys, So I Just Got Halo 3 And Xbox Live. My First Couple Of Matches Went Great. Then All Of A Sudden The Game Started Messing Up. For Example, While Chasing Another Player, The Player Would Jump To A Different Position. Then My Timer Would Stop Counting Down, And I Could Not Kill Anyone No Matter How Many Times I Killed/Hit Them. And then All Of A Sudden I Would Just Die....Could Someone Please Explain To Me What The Hecks Going On?! Its Really Annoying Me And Is Costing Me XP Points....Plz Help,