Attempting to browse the tables of an ODBC datasource, that was created
without entering anything in the "username" field, causes OO to abort with
an "unrecoverable error". Entering anything (even a nonexistent username)
into the username field prevents the crash.
I am connecting to a PostgreSQL DB with UnixODBC under linux. The problem
happens both in OO 638c and the Staroffice 6 beta.

To reproduce:
(install OO->workstation install; UnixODBC; create ODBC datasource"PostgreSQL")
1) in swriter, choose "Tools | Data sources ..."
2) click "New Data Source"
3) set "Database type" -> ODBC
4) for "Data source url" -> press ".." and choose ODBC datasource "PostgreSQL"
5) click "OK" to create datasource (do not enter anything under the ODBC tab!)
6) now, choose "View | Data sources"
7) expand the new data source
8) expand "Tables"

Actual result:
OO aborts with an "unrecoverable error".

Expected result:
OO should display a meaningful error message (and should not crash!).

My environment:
OpenOffice.org build 638c
Linux kernel 2.2.19; i686 with 128 MB ram;  glibc 2.1.2 (RedHat 6.1)
PostgreSQL 6.5.2  (from RH 6.1)
unixODBC 2.0.9 (from http://www.unixodbc.org/; compiled on RH 6.1)
(contents of /etc/odbc.ini available if you want it)