BIOS settings for my ASUS geforce 9600 gso video card

I just set everything up last night, I buit the comp over the weekend after buying everything. Just stable overclocks to maximize the performance. So far the monitor is great,.... almost think I got it to big..haha. I've been having some difficulity with the display settings tho. When I run a DVD using media player the image is blurry/shadow/double image. So I'm trying different settings but havent found the rigt one