Well I've had a ridiculous response from Sony UK regarding my C3 screen. The anti glare coating has been wearing off around the edges causing an oily appearance. Sony has agreed it's a defect however won't be replacing the screen because they don't accept it's an issue affecting the C3 but they do recognize it on the Nex3!!! A defect is a defect no matter which model it affects. I've seen the problem affecting the Nex3 and mine looks exactly the same. I was thinking of upgrading to the 6 or 7 however I have serious concerns following the above response. Going to pop into Jessops tomorrow to have a chat and I'll be contacting Sony UK myself next week.