I purchased a monitor made by Acer and after a couple of months it stopped working. I had to mail it in for repairs, but it was returned back to me in the same broken state. They said that the power cord must have issues, but I used two other power cords and no it didn't fix the problem of turning on. I contacted the customer service and they stated that I would have to mail it back on my own and that they would look at it again. They did pay for the postage the first time. I didn't send it back as the warranty didn't state that they would only pay for postage one time so they could attempt to fix the item.