Help! DVI to Video adapter not working!

Hello,
I bought a brand new DVI to video adapter and it's not working. I plug it in and it shows the start-up screen, but it's split screen and it's in black and white. Then, it goes into the black and white lines, not showing what's coming out of the computer at all. I've tried doing this on three separate TV's and none work. Can anyone help?

Can you give us your video card specs and the link to the product you are using.

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