when playing my space invaders it will occasionally give me a line of 4 or 5 dots up the very left side of the screen, and sometimes a period left of the s in score one, however it will go away when you beat a wave and the wave resets. voltages are good, and i have cleaned all the edge connectors and also the main edge connector between the two boards. is this a normal thing cause i know sometimes you'll get the bottom and top of the levels where it says credit shot up from the invaders shooting down at you.
jim
jim
