My previous ipod touch had a bad screen so I went to return it and, boy, was it easy. He recognized the problem right away (even though it was the first ipod touch he ever saw face to face) and gave me an exchange. He told me that if it's a manufacturing problem, then odds are the exchange won't solve the problem. As a result, he extended my exchange warranty until october 31. He said if Apple doesn't fix the problem by then I can get return it and get a full refund!!! In addition, he also notified the Apple's engineering sector about the inverse black problem through e-mail. He said it would be a start to get apple to recognize the problem if they haven't already.