I HAVE INSTALL XP AND VISTA BOTH ,AND I HAVE MADE XP DEFAULT OPERATING SYSTEM IN XP AND UNCHECK THE OPTIONTIME TO DISPLAY LIST OF OPERATING , THE SAME THING I HAVE DONE IN VISTA NOW ONLY XP STARTS AND IN LIST OF DEFAULT OPERATING SYSTEM OF " SYSTEM START UP" UNDER START UP AND RECOVERY THERE IS NO VISTA SHOWING HOW CAN I STARTS VISTA OR LOG INTO VISTA1 person needs an answerI do too