I would like to seek for advice on the repair of my MacBook Pro 15" Early 2008 model. My MBP has broken down, and the problem is that it cannot power up. When I pressed the power button, the white light infront will lit up for a short while, and then the MBP will power down by itself. If I continue to hold on to the power button and not release it, the white light will start to blink rapidly, and then the MBP will still power down. I sent the MBP to an official Apple service center for repair, and the diagnosis was that there is a problem with the power circuitry in the logic board, and the solution given was to replace the logic board with a new one. As the warranty of the MBP has already expired, the cost for repair is almost equivalent to the price of a new MBP, so I did not choose to have it repaired. I subsequently approached a few third-party repair shops and just verbally described to them the problem. All of them told me that they can repair it and the estimated cost is not high relative to the repair cost quoted by the Apple service center (but it will still cost me about USD200). Now my dilemma is whether I should even bother to try to get the MBP repaired, the main question in my mind being whether it is feasible to repair the logic board. I had a previous problem with my MBP (at that time it was the 2007 model), which is that one day the display just went blank, though the MBP still could be used through an external monitor. The MBP was under warranty at that time so I sent it to the Apple service center for repair. I was told me that the logic board was faulty, and instead of repairing it, Apple just gave me a new early 2008 model MBP as replacement, which is the one that has now broken down. Does anyone try to have their MBP logic board repaired before and have any positive or negative experience to share? Thanks.