i'm wondering how common the, apple acknowledged, display issue is with the 2007/8 macbook pros? do they all fail, or just some? i've got a lightly used 2008 MBP that's working fine, but what are the odds it will stay that way? i'm trying to decide whether to get rid while it's still fine, or hang on to it and hope for the best? the 4 year GPU warranty is due to expire fairly soon.