Question My BenQ gl2460BH displays weird squares and color banding

The second thing: You sure it's not just compression fragments in the video? Have you tried watching the same video on another display, and checking for the same issue? Does it happen with dark colors in all video sources?
 
Try to locate problem and focus on one thing at a time.
First, focus on the cheap option. It may be a wonky cable. Try replacing the cable with another one. Try all possible cable combinations you can use, and see if it helps.
 
Try to locate problem and focus on one thing at a time.
First, focus on the cheap option. It may be a wonky cable. Try replacing the cable with another one. Try all possible cable combinations you can use, and see if it helps.
okey i will try and find another hdmi cable, and ill try the vga cable that came with the display.