I've recently purchased a Surface Pro 3 core i7 256 gb from a local Microsoft retailer, and in hopes of using it for college, I have begun putting it through its runs. I was testing how well of a note taking device and how well it dealt with programs such as Photoshop and games such as Civ 5. However, on the 3rd day of use, the day that I felt committed to keeping this as my primary computer for college, I noticed a faint circle on my screen during cleaning. I was first alarmed as Gorilla Glass 3 has a decent reputation of scratch resistance, but as I looked closer, I realized it was less of a scratch, and more of some kind of defect (can't really describe it). I can swear that there was no defect before this, as I have been victim to many defects in laptops prior, but this defect was new. It was near invisible when the screen was in use or clean, but when cleaner or dust was on the screen, it was quite apparent that there was something wrong. It kind of looked like a coffee mug stain on a table as some parts were faint, and other portions of the circle were very visible when cleaned. The area is easy to feel with the finger and especially the stylus. While writing, I could feel a slow down as I crossed it and it feels like a slight bump with my finger. Most concerning of all was it's perfect shape. It definitely outlined a perfect circle and I definitely have not used my SP3 as a drinks coaster. In fact, I haven't tested it outside or anywhere out side of my room, and I've been careful to keep it clean and in it's cover or in a pouch. After seeing this, I then looked for images online of what the interiors looked like, hoping to see a heat sink, but to no avail, as the heatsink/fan/cpu apparently is on the top (correct me if i'm mistaken) and my defect is just southwest of the middle of the screen. Due to this, I feel that this hybrid will not be able to stand the test of time if just a little gaming and photo-editing could cause a screen defect like this. I wasn't pushing the hybrid to it's max, but I speculate that there is a relation to heat due to this. If anyone could tell me as to why I am getting this issues, I would be most appreciative. If it is just me, maybe I'll give this device one more try. p.s. It's pretty hard to take a picture of due to the reflective nature of the screen. I did my best, and will try to outline the issues. And this is truly tragic as I have just invested 2 hours into customizing everything, creating tile groups, and getting all of my programs on here.