AH, perhaps I jinxed myself, but I could not get this screw out. I think I stripped the phillips head too. Is there anything left to do to salvage it?
About disconnecting the inverter cable. I had more luck wedging the pointed end of spludger between the PCB near the cables and the shoulder of the connector nearest the display. I then pushed the pointed end of the spludger away from the display and the connector popped up off the socket. when trying to use the spludger on the sides of the socket, i deformed the plastic edges of the socket.