Many years ago, I used to run an HP3000 system. HP distributed a periodical to their service people, which we occasionally saw (the periodical, not the people). I vividly remember one issue, where, in response to a question about what to do with a bunch of boards that had become contaminated from fire or flood, the response was to put them in a dishwasher with a good deionizing detergent. Dunno if it needed it. Hp included in its ads once the story about a unit that was found in the trunk of a stolen car that had been ditched in a river. The unit was returned to the factory, and, when dried out, found not only to be functional, but still in calibration. HP tended to be very practical in service matters. The 3000 was intermittent -- one of the first ones -- and, after a month or so of excessive downtime, we got a call from the tech, who said that the factory had found the problem, and he would stop by after getting the repair tool. An hour later, he showed up, opend up the cabinet, and pulled a claw hammer out of his toolkit. He put the handle on each board in turn, and swatted the head with his hand, thus firmly seating said board... Mike Mullen -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.