Windows XP not starting up correctly.

I recently bought a new ASUS motherboard and AMD processor… thats working. Now that I have installed XP Pro I am having problems. Everytime I start the computer it asks which operating system to use, and it gives a list including: Windows XP Home Edition, and another Windows XP Home Edition! Why does it do this. If I click on one of them it says I have a corrupt file and states some BS, then it restarts and the problems occur again. The only way i can get to windows xp pro is by reinstalling it and selecting repair mode. Please try your hardest to help me with my problem. Thanks.