There are fixes available in the !sasroot/sas_notes/fixes directory for 
the following problem:

SAS Note V6-SYS.SYS-C443  Running SAS 6.11 on Digital UNIX 4.0

  This problem is related to running SAS 6.11 TS040 on Digital UNIX 4.0
  workstations.  With this new release of Digital UNIX, SAS Institute
  is providing a new, patched SAS executable.  Without this
  new binary, SAS users may experience incorrect numeric results or
  other odd errors.

  NOTE: To apply this new sas.digital4.0 module, users MUST be at the 
  production level of SAS 6.11 TS040 FIRST!

  To apply the fix perform the following steps:

     1.  You will need to move a new sas executable into !SASROOT:

     cd !sasroot
     cp sas sas.old
     cp !sasroot/sas_notes/fixes/sas.digital4.0 !sasroot/sas
     chmod 755 ./sas 

     Also, it is suggested to use the 'chown' command to set ownership
     of the new sas executable to match the current ownership of the sas.old
     file.  For example:

     ls -l sas.old
     See who owns the sas.old file 
     chown <owner_sas.old_file> ./sas  (ex/ chown bin ./sas )


     --------------------------------------------------------------
     Note:  !sasroot refers to a directory like  /usr/local/sas611.
     --------------------------------------------------------------

     After copying the new sas module, you will need to re-patch the sas binary:

     While still sitting in the !sasroot directory, just enter:

     ./utilities/bin/patchname !sasroot/sas !sasroot

     DO NOT forget to use the full pathname for the !sasroot value. 
     For Example, if !sasroot is /usr/local/sas611:

     cd /usr/local/sas611
     ./utilities/bin/patchname /usr/local/sas611/sas /usr/local/sas611


     Another method you can use to issue patchname is via sasmanager, and
     you can follow these steps to walk-thru the process:

     cd !sasroot
     ./sasmanager
       Invoke Custom Installation and Utilities...
       Invoke SAS Installation Utilities...
       Patch SAS Binary with Installed Directory 
	  Enter 1 for Disk Image
	  Enter local if !sasroot is located on machine
	  Enter in the directory name that is one level above
	     the actual !sasroot value. For example, enter
	     /usr/local if !sasroot is /usr/local/sas611


  To verify that you have the module correctly applied, once you invoke
  the SAS System, you should now see a TS Level of 041 in the SAS Log 
  Window, versus the TS040 level from the previous moduleTS Level of 041 in
  the SAS Log Window, versus the TS040 level from the previous module.