I've got this very very minor glitch with my Pole Position 2 board. Basically, a couple of the static screens (see below) have strange little one pixel wide black "strings". They're not on screen during actual gameplay... only primarily on the brown/tan titlescreen and the high score screen. When entering a high score, the little "strings" will sometimes dance around moving around the screen. Again... they don't affect gameplay one iota, but it would be cool to determine whats causing them and if they can be fixed.
Here are some photos (i've circled some of the problem areas):
Here are some photos (i've circled some of the problem areas):

