I know it's been discussed before, but in my search I didn't find any solution; so, here's my question: Who else is experiencing, or has experienced their display flickering the brightness? Have you talked to anyone at an Apple store about it? How'd your experience go? I just went in this weekend to the Apple store in SF and the guy at the Genius bar said he knew nothing about it. Looked it up in his "database" and found no other common cases. Of course, I couldn't get it to duplicate it in front of him as it is completely random - he kept guessing that it was power consumption related so opened up tons of programs to induce the effect.... nothing happened. Any suggestions for my next visit to the Apple store? Thanks!