02-23-2016, 03:20 AM
Well I hate to say it but I'm getting those boxes like you, mine takes about 5 minutes to happen. I know its not the hardware because my elecfreaks has never done that and I haven't seen it on any of the CPLD I've been testing, some I've ran for days. Now I have to think it is the display. It happens when something changes on the screen, maybe it gets confused by an image and goes bad from that point.