Hi, So I got my Surface Pro 3 replacement today and so far the tingling on the back of it has gone, but it was intermittent on the last one so we'll have to see. There's no yellow band - yay. There is a bit more light bleed - boo but it only really shows up on the boot screen. But... my old SP3 had the windows button buzz when you use it, this one doesn't. It works fine, you just don't get the feedback. I saw a post just before returning mine from someone who had a replacement from a new lot number and they said the same thing. Have they removed the feedback or do I have another dud? To be honest, as long as the button works I don't need it to buzz and so far it works perfectly, but I was wondering if they removed the buzz or if it was a defect. Out of curiosity I tried one at a local retailer and that didn't buzz either. Edit: hmm further investigation it does seem to be buzzing a little now, it's just a lot less intense than my last one and has to be pressed in a specific point to get the feedback, otherwise it works but without feedback.