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My sony vaio laptop screen displays pictures that are bloomed.The text as i am typing is mixture of green and blue.My NVIDIA GEForce is disabled as the laptop wont boot with it.External monitor seems working OK.The bios password screen has a pattern of thin vertical lines and the the screen fills momentarily with column of two ZEROES separated by a column of two zeroes etc after password is entered and before windows vista loads.Is the display or NVIDIA or both faulty.In an earlier simmilar situation the problem resolved while runnin Anti virus scan. Any clue please.Thanks AM