JDBC Transaction Problem

I got the following error message when I trying to insert a row to database.
[Microsoft][SQLServer 2000 Driver for JDBC]Can't start a cloned connection while in manual transaction mode.
Here is my code:
 Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
        Connection dbConn=DriverManager.getConnection("jdbc:microsoft:sqlserver://192.168.0.121:1433;SelectMode=cursor;DatabaseName=MyDb",strDbUser,strDbPassword);
        Statement stmt=dbConn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);
        dbConn.setAutoCommit(false);
        ResultSet rs=stmt.executeQuery("Select * from User_Table");
 rs.moveToInsertRow();
        rs.updateObject("userName","hello");
        rs.updateObject("UserLogName","hello");
        rs.updateObject("UserLogPWD","123456");
        rs.updateObject("UserStatus",new Integer(0));
        rs.updateObject("UserPendingPoints",new Integer(0));
        rs.updateObject("UserAwardedPoints",new Integer(0));
        rs.updateObject("UserTotalPoints",new Integer(0));
        rs.updateObject("UserEmail",new String("strUserEmail"));
        rs.updateObject("UserName",new String("strUserName"));
        rs.updateObject("UserLogPWD",new String("strUserPwd"));
        rs.updateObject("UserLogName",new String("strUserLogName")) ;
        rs.updateObject("UserAddress",new String("strUserAddress"));
        rs.updateObject("UserPhone",new String  ("strUserPhone"));
        rs.updateObject("UserMobile",new String("strUserMobile"));
        rs.insertRow();  
        dbConn.commit();  

Can anyone tell me how can I solve the problem?

thank you very much