Also check the opto board for cracked solder joints on the connector.
If you wiggling it and stuff is happening then there's something to look at.
the opto is the new replacement I got when I had all the problems. Do you think there's a high probability that could be the problem or should I do the conenctor first. The connector obviously will be more time consuming that the opto fix (I hope) 
If it's a new opto board then you wouldn't think there would be a problem with it , but i'd be still having a good look at the solder joints on it to be sure.
If the joints look ok then maybe the plug is the problem....if your wiggling it and it's doing strange things then there's a problem there somewhere.
