I have a MacBook Pro 15 inches 2.4/2.2 Ghz and since Jan 5 this year have no video. I took it to service in Irbit.com.ar and they said it was the Logic Mother Board. Now I see in the Apple website they are replacing this problem with NVIDIA GEForce 8600M GT graphics chips, and they say they would repair it. They call me again from Irbit, (authorized Technicians in Argentina) They run the tests, they don't get the typical Apple chime, and back again with my Mac without solution. Does anyone know if in Latin America rules apply as in the U.S.A.? I am very confused!