I just installed this PSU today on an HP-UX server through Grid on our development databases. Just wanted to warn everyone that if you install this (through Grid, maybe through download/opatch way as well) that you might find the problem in Note: 1083248.6 with sqlplus not being able to run. I got a Permission Denied error after the install when i tried to run sqlplus. After chmod 755 $ORACLE_HOME/lib/libclntsh.sl chmod 750 $ORACLE_HOME/lib/libclntsh.so.10.1 (this was because the install owner could use sqlplus, but other users still couldn't) it worked again. Just wanted to FYI everyone. I put a "review" on that patch download if you download it through mOS. Lyall