I set up my Dell S2409W with my new i7 MacbookPro and have green flickering pixels all over my display. I didn't have the issue with my older C2D MacbookPro, but can't check if it would be there now too since I don't have it anymore. I tried checking with Dell's website to find some help with the problem, but couldn't find anything related. Does anyone here have an idea what could cause the flickering? PS - When I initially plugged the display in, the problem didn't occur. Just started after watching Hulu about an hour ago. I also tried turning both the laptop and the display off and unplugging and replugging the display.