...with two operating systems?If so how. thanks? well i dont actually have a hpm8124n(desktop) yet, but i want to buy it soon. before i buy it i want to know if it is capable of having two operating systems, it comes with windows vista ultimate. i would like to add windows xp. i asked a salesman and he said yes, but not sure, and he also said i could but it might not have the "drivers". what is a driver? please be specific in the directions.also i have a sony vaio vgn-nr160/e. it has vista home premium i would like to also dual boot with windows xp.thanks and please be specific with the directions and if you have the answer to both of them please label the answers. ex:hp desktopdirections directions directionsdirections directions directionslaptopdirections