I've played Borderlands GOTY Mac version for many hours, have beaten it with each character type, etc.. So it has gone through the paces with no problems at all, both single player and MP through Game Ranger. Suddenly it is not letting a couple of functions work properly. I hit tab and the menu won't come up it just flashes by quickly. Or when I hit "E" at a teleport pole or catch a ride pole, again it either just flashes by quickly, or simply reloads my gun. Anyone else experience this and know what the cause/fix may be?