I recently bought an Xbox from EBay. This Xbox is not like any other Xbox, it has a translucent blue case, and has blue LEDs installed. However, I recieved the Xbox, and the video screen flickers! It reminded me of when I tried feeding a PAL system into the same TV, it was black and white, and the screen just rolls over and over again. I contacted the seller who told me I needed an HD (High Definition) A/V pack, the one where I need the red, blue, and green cables to get it to work, as well composite input. I have no clue why I would need these, since I know that Xboxes work normally with standard A/V input. He told me he'd send them to me at no extra cost, but I am still ticked off that he didn't say anything about it sooner. So I'm wondering what's wrong with my Xbox, and if what the seller is saying is true, that I need the HD pack and the composite input, or if he's totally bullshitting to me and sold me a busted Xbox. Thanks in advance.