I've literally gone through 6 tablets already, all returned or exchanged. I was going to keep the one that had little light bleed on the left side when you look at it at portrait mode, but guess what...the screen started flickering when the wifi bars dropped to two, lol. It's crazy, I really question the QC. Because going through 7 tablets that were all defective is pretty bad. I just bought another 4 Nexus 7 16gb tablets in bulk. Going to start testing today. Let's see if I finally get a good one. This is my last hoorah. If I can't get it good one this time I will be looking for another brand. I love the tablet, it's fast, apps are great, and it performs well, but the high percentage of defective tablets is simply staggering.