Hi Larry,
Just opened up the 1000PX again... Are you referring to the decoupling caps? I'm pretty sure that's their function. There is one at each IC, most are K5M 104, which (if I am correct) = 0.1uf. There has to be around 50 in here and only around a dozen electrolytics.
At this point, I think I will spend a few bucks on new electrolytics all around. They are cheap enough. Changing them out will also refresh the solder connections to the PCB. I am currently making a list and will place an order tonight. If that doesn't do the trick, at least they will be eliminated.
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peace,
Frank Dickinson
90 East Productions