Sorry for pulling up such an old thread but i have had this problem for a week and was pulling my hair out.

After having fixed it very easily thought it was worth putting on here incase anyone else gets this problem. For a week i searched the web for answers and kept getting this page come up in TMO.

it may seem incredibly obvious but if you have (like i and most do) an adhesive protective screen, simply take it off. Straightaway my problem stopped. Put my protective screen back on and problem is still gone.

Very simple solution but had me very annoyes for days lol