yes, you will need to edit the grub menu.lst how-to do that: (I am assuming that Vista hardrive is the slave hardrive and Linux is master and that you are using grub instead of lilo [if you used the livecd then you are using grub ;P]) fire up ubuntu and open up a terminal and type the following commands: (without the quotation marks) "sudo su" [type your root password to become root] "cp /boot/grub/menu.lst /boot/grub/menu.lst.bak" "gedit /boot/grub/menu.lst" go right underneath the fallback or the one saysing something about ubuntu/linux and type the following making each line I type a separate line in the file: title "Windows Vista" root (hd1,0) chainloader +1 Save!!! Okay now I assumed both your hardrives are not sata drives :P if they both are sata, then replace hd1, with sd1. If vista hardrive is the only sata drive then replace hd1, with sd0. If you have problems then type this into the terminal and post your results: fdisk -l #That is a little L! Now when you boot up you will have the option of choosing between Ubuntu and Vista, with Ubuntu being the default if you do not make a selection in a certain amount of time :P

oops, i made a mistake, change that section where you type into that grub file from where it says root (hd1,0) to rootnoverify (hd1,0) :P just to make sure it will work :P my boo boo, :P