I recently built a computer but the graphics card did not come with an adapter to my current cable used to hook up the monitor to my current computer. Now i need to buy an adapter but i'm not sure which to get. DVI to VGA or VGA to DVI? Are they both the same? Some of them say DVI M to VGA F or DVI F to VGA M. I currently have a cable that has blue plugs and 3 rows consisted of 5 pins each row.