That display is crocked.
Swap player 3 and 4 displays to see if the issue follows, but I'd say it has an issue that is bringing down the other displays.
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Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info