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' Apple has determined that a small percentage of MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts,' the company has stated in a support announcement this week. Now, Apple is finally stepping up to the plate and admitting that its previous approach was inadequate, while confessing that the flaw extends further than previously thought. While Apple had replaced any faulty systems under warranty, those whose devices fail outside warranty - even those who had already received a replacement only to find it suffering from the same issue - had been left with a charge of several hundred pounds for a replacement motherboard, an approach which made Apple the target of a class-action lawsuit last year. This results in cracks which interfere with the GPU's operation, manifesting as graphics corruption, crashes, and entirely dead laptops. The GPU, a component which frequently varies in temperature depending on load, is connected to the motherboard via a lead-free solder which becomes brittle through repeated thermal cycling. Apple has finally admitted culpability in the long-running saga of MacBook Pro laptops with faulty graphics hardware, launching a repair extension programme for a swathe of its customers.Ä«uyers of Apple's 2011-era MacBook Pro have long maintained that the device suffers from a serious design flaw which causes premature failure.