thanks jovery...

this is what i see on my alert log.
*******************************************************************
ORA-3217 signalled during: alter tablespace temp default storage (pctincrease...
ORA-3217 signalled during: alter tablespace temp default storage(pctincrease ...
ORA-3217 signalled during: alter tablespace temp default storage (pctincrease...
ORA-3217 signalled during: alter tablespace temp default storage(pctincrease ...
ORA-3217 signalled during: alter tablespace temp default storage(pctincrease ...
ORA-3217 signalled during: alter tablespace temp default storage (pctincrease...
ORA-3217 signalled during: alter tablespace temp default storage(pctincrease ...
****************************************************************


now how do i see if it generated the trace file ?...and where can i find that trace file ?

Thanks
Ron