I have followed the guide to installation of my Geforce FX 5200 and i haven't been able to install, my previous video card is connected to my PCI and is a GEforce 2 intergrated GPU. Well anyways everytime i connect my 5200 to the AGP port and disconnect my Geforce 2. My computer monitor says that it is not plugged in and can't read anything even though it is. When i disconnect geforce 5200 and reconnect my geforce 2 it starts working again, any tips?