Re: Dual Booting
The one point that most how-tos fail to make clear is where to install GRUB. It has to be installed to the MBR of whichever disk boots first. If your Windows disk is the first to boot, you would install GRUB to the MBR of that disk and it would point to the menu.lst file on the other disk. Or if the Ubuntu disk is the first to boot, install GRUB to the MBR of that disk and point it to the same disk.
Break it, fix it, learn something.
People who never make mistakes seldom make anything!