Receiving Error ORA-3106 in Toad when running dbms_output.put_line

If it's not too inconvenient to take the ini setting back out to try to get it to happen again, I'd appreciate it. I haven't been able to reproduce it but I think it is data-dependent.

You are probably correct. I setup a simple test and could not reproduce this morning. I will keep the ini file as is on my laptop and post back when I see the error again.