Tried to go to help center, but there's nothing there that accurately describes my situation. I received my item. It worked for about a week. Then it no longer powered on or connected to any computers. (I tried 3 computers). Here's what I think happened. I think maybe this item was refurbished because it originally had a broken octopus cable? And then the refurbisher replaced it with an after-market one. And now that one is broken. Anyway, I'm very sad that this monitor was a dud, and cost me several hundred dollars. Not sure what to do. I left it at my cabin, which is why I bought it - to have a larger external monitor at my cabin for when I work there.