I installed a new video card and uninstalled my old video card drivers yesterday. When I restarted my computer my mouse and keyboard wouldn't work(lights weren't on either). So I tried different usb slots and unplugging and plugging Em back in and nothing was working. I've since realized that it has to be a software problem because when I go into bios its reading them both and I can use both of them while I'm in bios, but when I go into windows they don't work or light up. Any help please!!