Hey, Each time I run doscmd It fails and gives me: # doscmd ax=ff00 bx=0000 cx=3000 dx=0000 si=0000 di=0000 sp=7ffe bp=0000 cs=0000 ss=9800 ds=0000 es=0000 ip=ffff eflags=b0206 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 addb %al,(%bx+%si) doscmd: fatal error unsupported instruction I'm not sure how to go about fixing this. >From Kyle