I should also add that I swapped the black's and black with red strip on the plug detailed a few posts ago and no issue and also that I did power up a few times with the 5 volts and earth reversed and it appears no damage to the display or display board

no worries Blktgr74, I know there is alot of info and a journey in the learning but hopefully helps others, so threads when you do a net search that just stop and you never see the end results of what the problem was