I brought my mbp with NV 8600GT 128M in 2008, it is around 3 years old, the 8600GT just had problem and I got the new bundle of CPU GPU Magic Board, but it was the same model with before, I just wondering if it will be failure again in the next year, I mean 4 years later when the warranty is expired. What should I do, seems there is no any choice to protect my MBP. does new 8600GT work better than then old version ? or no these issue any more? Thank you for you time to take a look of this.