The comp. out of my 3rd envelope is failing to trigger the 4th envelope. Is this a common problem Would it be a jack problem

I would welcome any advice.

Thanks,



Bryan Cornell
Reference Librarian
Recorded Sound Reference Center
Motion Picture, Broadcasting and Recorded Sound Division
Library of Congress, Washington, DC 20540-4698
Phone: (202) 707-7833
Fax: (202) 707-8464
email: bcor@...
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