Hi again Bob. I have checked the machine and it resulted that the files of that program were corrupted in some way. All other programs worked fine. I have a back up copy of all progs in a different drive so I fixed it. Two days ago there was a huge black out here, in buenos Aires City, and the machine had that program active at that moment, also there is an intermitent comm failure that I was not able to spot by now (frequent 4c01 comm retry), maybe the conjunction of those two factors caused troubles. Our Quad is 25 years old and after 8 years using it, it is far from standard. I installed a compact flash memory with an IDE adapter instead an HDD and free DOS. I boots pretty fast, but some unforeseen reliabilyty issues could happen. Again thank you, best regards and merry Christmas!
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