This is my first time posting here hope it goes well, umm well i just bought a new computer i had my neighbor hook everything up for me since i never did it before. when he finished he left without testing it, i hooked the monitor mouse/keyboard etc etc up. but now when i hit the power button it will start up and everything only one problem. my keyboard/mouse doesn't receive power thus not allowing me to install an OS or do anything else. any ideas? has this happened to anyone here too? thanks in advance.