What are the contents of the PATH, LD_LIBRARY_PATH, SDEHOME, and ORACLE_HOME
What does "file $SDEHOME/bin/sdelayer $ORACLE_HOME/bin/sqlplus" return?
What does "ldd `which gsrvr`" return?
What shell are you using?
Does the giomgr process user's .profile, .bash_profile or .bashrc clear the contents of
PATH or LD_LIBRARY_PATH?