my htc flyer tablet was lying on my bed when i accidentally put my elbow down on the screen. the screen itself dosent look damaged, however when the screen is on i can see a brown ring around where i hit it, it looks like if there was a small bit of water under the screen (which isnt possible as it hasnt been anywhere near water). i was wondering if i will have to replace my whole screen, or if this is a problem that will fix itself? help is greatly appreciated.