I installed Window XP black dream v8.1 on laptop dv6721tx, and after that I install some of the drivers ofr XP, then during installing the HP quick button driver, Window unexpectedly keep restarting and displayed this statement " showed in photo " http://img257.imageshack.us/my.....201kc3.jpg " , then I tried to reinstall Window XP on laptop again, but the statement above keep appearing after setup loading files complete ? Please help me to solve this problem. Thanks a lot.