This is my first post, and I have been following the many threads about MBP display issues since the SR revision. Following is our purchase story, which seems to find no happy ending and we're getting extremely frustrated. My girlfriend and I both purchased a refurbished 15" SR 2.4 mbp when the penryns came out. Since then, I had to return mine because it had the unacceptable red-green (and other color) gradients exhibited by the samsung displays, and hers recently broke down with a logic board failure. Since she absolutely needed a computer and had nothing to fall back on, my gf decided to go for a new 15" penryn, wanting to avoid losing any more time. The first one back from the store had the 9C83 display with color gradients just as bad as the one I first returned, along with some nice yellowing on the bottom. Clearly apple has not addressed these issues in the new machines. In any case, we decided to return it immediately, and of course, the new one has the same display, just as bad gradients, and to top it off, a warped case on the left. The icing on the cake: it just did the alternating backlight columns issue which has recently popped on these threads (the one where every other light is off). We are at a loss. For all those who have managed to get a good MBP: What can we do? During the last exchange, the store manager warned that would be the last exchange, even though every single store MBP (air and macbook as well) has no gradient issues. She also said the gradient issue was within spec, though I immediately got her to agree that since none of the machines on display do it, it cannot be called within 'spec'. Calibration does not solve the problem. Any help or advice would be highly appreciated.