Tonight I decided to install XP as a backup to a small partition (10g) on a secondary drive. Vista is installed on my C drive. Now, though, when I boot, it automatically defaults to XP. I checked system>advanced>startup/recovery to set the default OS, but Vista doesn't appear in the list. I thought about Editing the info, but have no idea what I would need to fill in. Currently my C drive is listed as (System), my D drive as (Boot). I need to make C the boot drive. Any suggestions as to what I can do, besides doing more homework the next time i decide to muck around w PC? Thanks!