whats causing this screen interference ??? (attached screenshot)

[stallionstu]

could any1 please tell me what they think will cause this interference in this picture please thank you so much
(img) http://t.co/BmCuuUK9MX

 

[gheedorah]

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[stallionstu]

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sorry mate - hows this

 

[coozie7]

I can see no corruption on the desktop, so does this occur in games? Applications? Movies?