My Player Hair glitch

Ok so I change my eyebrows and mustache on my player and how he has a hair glitch

you can see some of his dreads, but around the scalp and head its invisible :(:(

Any help on this please.

turn off any AA or MSAA settings in your video card's control panel and only use the settings available in-game

thanks jao, worked. i changed some of my ati settings for gta iv.