Cant get GEFORCE 5200 pci to work?

hi, im trying to install this card but ever time i put it in, and plug the monitor into it, it stays shut off. then when i put it into the normal monitor plug, my desktop has nothing on it. even when i press ctr-alt-dlt, nothing comes up, its just a blank background. Any one have any idea what i need to do? i don't know computers well at all so any help would be appreciated, thank you