hi i bought a lap top whit vista installed on it but i realixze that vista suks and i practicly bough the lap top to play world f war craft and now i know that wow has incompatibility problems whit vista so i whant window xp in my lap but the xp instalation cd dosnt accept the hard drive it says that no hard drive is instaled in my computer i have a 160 hard drive isntaled so i dontk kwno what to do i was thinkif in complety format my omputer and loose vista and try to instal the xp but i afraid that the instalation wont work eiter so i need some help please i need some coments abaut this problem thanks