Okay so i just updated my computer to windows vista; i have two ata hard drives, one 80gb and one 120 gb. i setup the 120 as the slave and formated it prior to the install. when it came to installing vista, i used the 80gb one as the master and chose the new install option in the vista install that supposidly made xp inoperable. I am happy with vista, so i removed the 60gb folder windows.old, which in theory should have removed any trace of xp. everything runs fine, my computer has a vista rating of 4.2 and i am happy. the only problem is however, when i reboot my pc i am given an option of which os to chose; windows vista and ...... windows vista. why is this? i only installed vista once, and there is only one partition on my 80gb hard drive. i'd appreciate any help because im completely out of possibilities to explain this.