Hello everyone, I've been searching around for some answers regarding a problem I've been having with a Samsung SA550 monitor. I connected my MBP via the Mini-Displayport to VGA to the monitor and everything was pretty swell. The resolution I was using was 1920 x 1080 and everything looked sharp. Using this resolution, there was no letterboxing on any side. I also intended to use the MBP in clamshell mode only to save space. It worked great! However, I was fiddling around with some of the options and decided to click on "Detect Displays" under Displays in System Preferences. Ever since then, whenever I tried to use the 1920 x 1080 resolution, the image does not size up to the full size of the monitor and I get two empty black spaces on the left and right side of the display. Does anyone have any idea on how I can get back to how it was before? Among playing around with the settings, I also tried resetting the PRAM and NVRAM and unplugging both the power and the display cable for the monitor and replugging them in to no avail. Any help would be greatly appreciated!