HPM Toolkit has been updated to version 2.5.2 on Copper. There is a soft link from /usr/apps/tools/hpm/hpm to the current version. >From the release notes, there is a minor change from 2.5.1 to 2.5.2: Version 2.5.2 (08/01/2003) - Added missing external symbols to libhpm The NCSA web site doc has been updated with the new AIX user guide: http://www.ncsa.uiuc.edu/UserInfo/Resources/Software/Tools/HPMToolkit/ Thanks to Luiz for assistance in acquiring the new copy! Rick