Default Red marks on lcd

I've just noticed 3 red blobs on the screen as its booting up. Thought my eyes were going funny so I put it to a black back group and its there again can't see it on anything but a black back ground, has anyone else had this, if u watch it boot it toward the left of the google word. Not sure what I can do as it was a free tablet from cpw when my dad got a contract. Do I goto Asus or cpw ?

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