Libraries & drivers

All,

When opening a JDBC connection to the database using the toolbox driver, as
follows:

Class.forName("com.ibm.as400.access.AS400JDBCDriver").newInstance();

Properties driverProps = new Properties();
driverProps.setProperty("libraries", "M300_DVDTA");
driverProps.setProperty("user", userID);
driverProps.setProperty("password", password);

con = DriverManager.getConnection("jdbc:as400://NSBAS1", driverProps);

or

Class.forName("com.ibm.as400.access.AS400JDBCDriver").newInstance();
con = DriverManager.getConnection("jdbc:as400://NSBAS1/M300_DVDTA", userID,
password);

gives me the following error:

java.sql.SQLException: [PWS0082] 1 library(s) not added to the library list.

By trying different libraries, it seems that the underscore (_) is causing
the problem.
Is this a bug in the toolbox driver? Or some sort of character translation
problem?
The problem occurs when running on a PC client & on the iSeries.

I've tried using the native DB2 driver on the iSeries instead, this works
ok. Also I can specify the library as the default schema when using the Ops
Navigator Run SQL Scripts utility. What am I doing wrong?

Chris.