Hi Bob
Shame about your displays not turning up.
From your photo, alternate lines appear to be missing on the top half of the screen. I looked into the problem and managed to find someone with exactly the same issue, and in that case it was caused by damage to the display
https://forums.adafruit.com/viewtopic.php?f=47&t=34422
Perhaps you could try running some other software on the display, and if the problem persists then it is likely a hardware issue.
Adrian.
Shame about your displays not turning up.
From your photo, alternate lines appear to be missing on the top half of the screen. I looked into the problem and managed to find someone with exactly the same issue, and in that case it was caused by damage to the display
https://forums.adafruit.com/viewtopic.php?f=47&t=34422
Perhaps you could try running some other software on the display, and if the problem persists then it is likely a hardware issue.
Adrian.