Problem installing XP on partition VISTA

[HAKAN]

I have an HP laptop in which vista is installed by default. when i tried to install XP in a partition of vista I am faced the problems. I looked in the BIOS to see if I could start by the drive G: (my created partition), but not possible to choose the G:

[Bradan]

If your PC has recently selected the compatibility mode for your IDE hard disk SATA options in the BIOS in order to install Windows XP on it. Setup Windows XP does not natively recognize the SATA hard disks, you must either use the compatibility mode either provide the SATA drivers on floppy, or have an installation CD that you created with nlitement containing drivers necessary.

[HAKAN]

By changing IDE in the BIOS, everything is in order and I was able to install XP properly. Now, I will follow the tuto installation VistaBootPro.