yeah, I dunno what causes the black lines, but it happens on some maps in random spots. I use the onboard video cause I have not had time to track down why my mobo doesn't recognize my Radeon 9600XT vid card. I use the small crosshairs, and I do play with the left handed look. I am a normally right handed person, but when I play with the left handed look somethign about it fits my eye better, and helps me aim better, can't explain it, just works that way.