678-4, welcome to the forum.
When requesting help, you should always include the make/model of the computer and/or monitor. This information is necessary for us to review the specifications of them.
Here is a guide that should help you:
http://www.howtogeek.com/howto/8790/dual-boot-your-pre-installed-windows-7-computer-with-xp/
Please click "Accept as Solution" if your problem is solved.