raise notice causes driver to crash

raise notice - displaying string having length over 4096 characters
causes crash in ODBC ANSI driver but seems to be ok on 7.4.3 driver.

Driver: psqlODBC ANSI ver. 8.4.2
Database: PostgreSQL 8.1.5 on i686-redhat-linux-gnu
Error: Faulting application vb6.exe, version 6.0.97.82,
faulting module psqlodbc30a.dll, version 8.4.2.0, fault
address 0x00045431.

Notes: Version 7.4.3 of psqlodbc driver driver does not expose
this issue

Calling procedure from VB

Const strConnect = "DRIVER={PostgreSQL
ANSI};DATABASE=test-medsql-alder;SERVER=192.168.100.77;PORT=5432;

UID=postgres;PWD=secret;ByteaAsLongVarBinary=1;MaxLongVarcharSize=-4;"
conn.ConnectionString = strConnect
conn.Open
Set RCS = conn.Execute("SELECT * FROM
select_patient_all_visit_data(77.00,'')")

Called pl/pgsql function

--sqltext is dynamically built here with a LENGTH OVER 4096 characters

--next line if enabled causes crash
--*********************************
--raise notice '%',sqltext;
--*********************************

FOR ret_row IN EXECUTE sqltext LOOP
return next ret_row;
END LOOP;
return;

Hope this helps track down the issue(s) if any...
Alex Balan