Startup problems

Hey 

my pc has been assembled and all is well but everytime i plug in a monitor it wont detect anything ive tried 3 monitors and doubt it would be anything else apart from a power supply that might be underkill.ill list the specs incase it helps.

althon x4 760k 

msi 660 

an old seagate barracuda (although i doubt its the problem as it wont post anyway???

i was wondering if i need to have the driver cd in or something?? im not sure ive tried everything i can think f and getting really frustrated 

Thanks 

-lee 

make sure the card is seated appropriately.  Other than that we need more info, beep codes?  Motherboard?