i have re-named the ssmsact table to ssmsactold, dropped table ssmsact and associated index, tried vacuuming again and still get the same error. i then re-created ssmsact table and indexes w/ the SAME NAMES as used originally, populated it with values from ssmsactold, and checked that all values were inserted -- they were. but still get the same error message when vacuuming! help! we need to vacuum!!! jt -----Original Message----- From: JT Kirkpatrick [SMTP:[EMAIL PROTECTED]] Sent: Tuesday, December 28, 1999 10:00 AM To: '[EMAIL PROTECTED]' Subject: vacuum problems any idea how to correct this problem? system seems to be working fine, but nightly vacuums give us this error message: works=> vacuum; NOTICE: BlowawayRelationBuffers(ssmsact, 1533): block 3016 is referenced (priva te 0, last 0, global 1) pqReadData() -- backend closed the channel unexpectedly. This probably means the backend terminated abnormally before or while pr ocessing the request. We have lost the connection to the backend, so further processing is impossible. Terminating. any help would be appreciated! postgres 6.4.2, rh linux 5.1 2 w/ kernel 2.2.2 jt kirkpatrick ************