DbVisualizer 3.0

Howdy all, still trying to work out getting DbVisualizer to do graphing
for Postgres. Currently I am running development JDBC drivers (built in
the last few days) and have upgraded to version 3.0 of DbVisualizer. I
am also using a 1.3 JRE, the same JRE provided with the previous version
of DbVisualizer. At this point I am not getting Null Pointer Exceptions,
and I am able to get graphing working to some degree if I limit the
graphs to Table Name only, but I'd really like to get it working fully
if possible. Right now what I am experiencing is

java.SQL.Excpetion: ERROR: No such attribute or function 'oid'

this seems to occur whenever the program queries for specific column
information. As I understand it, the JDBC driver is not supposed to
return OID when it queries to get the column information, so I don't
know why the program thinks it needs it. I am wondering if anyone else
has successfully used DbVisualizer 3.0 and if so what JRE/JDBC combo did
you use? I plan on trying the jxDBCon drivers next, but it is supposed
to work with either. Thanks in advance,

Robert Treat