I built a PC system with 2 Matrox 6-video output cards for a total of 12 outputs, making a huge panoramic (15360 × 800 pixels).
MM was working fine with version 13.5 and now it won't play the super-wide panoramic .jpegs with version 13.61. The files are visible in the Images bank, but the preview file is black and when selected, the screen is black.
thanks!