After a brief absence of large notebooks, HP on Tuesday revived the HDX line with two systems that turn the focus from gaming to movies. Both the 16-inch HDX16 and 18.4-inch HDX18 are HP's first systems to use a 16:9 aspect ratio display better-suited to movies and have a built-in subwoofer, a remote and HDMI video out. Their performance is also friendly to full HD with a 2.26GHz Core 2 Duo and