What is NAGI

Hi, How to explain I run dosbox 0.60 and when i begin to play lsl1 and kq 2 the character double double double when it goes right My config: -Win 98 se -512 mb of ddram -TNT 2 64 mb -Soundblaster Audigy 2 zs -Amd athlon xp 2200+ I try to raise the frameskip and the speed nothing do