Have you done a source $AIPS_ROOT/LOGIN.CSH (tcsh shell) . $AIPS_ROOT/LOGIN.CSH (bash shell) Then echo $DYLD_LIBRARY_PATH This should show references to 31DEC07/MACPPC/LIBR/IBMCMP You can also go to $SYSLOCAL and see if there is a 0-byte file RSYNC.ME. that is required. Eric Greisen