Hi.

My sample test application, ok for NHIbernate 1.0.4 (Mono and NET, Sql Server and Oracle), raise error using NHIbernate 1.2.0 (Mono - Sql Server); others test on 1.2.0 (Mono-Oracle, .Net-Sql Server, .Net-Oracle) is ok

Error (form log4net log) is ********************
DEBUG [1056] (:0) - Obtaining IDbConnection from Driver
DEBUG [1056] (:0) - SQL Exception
System.ArgumentException: An invalid argument was specified.
at System.Data.SqlClient.SqlCommand.System.Data.IDbCommand.set_Transaction (IDbTransaction value) [0x00000]
at NHibernate.Transaction.AdoTransaction.Enlist (IDbCommand command) [0x00000]
at NHibernate.Impl.BatcherImpl.Prepare (IDbCommand cmd) [0x00000]
at NHibernate.Impl.BatcherImpl.ExecuteReader (IDbCommand cmd) [0x00000]
at NHibernate.Loader.Loader.GetResultSet (IDbCommand st, NHibernate.Engine.RowSelection selection, ISessionImplementor session) [0x00000]

Mapping file is *********************
<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-access="property">
<class name="test.ClasseBase, PerformanceDominio"
table="ClasseBase"
mutable="true"
lazy="true">
<id name="Intero" column="Intero" type="Int32">
<generator class="assigned" ></generator>
</id>

<property name="Booleano" type="Boolean"/>
<property name="Decimale" type="Decimal"/>
<property name="Data" type="DateTime"/>
<property name="Stringa" type="String(255)"/>
</class>
</hibernate-mapping>

Configuration file is *********************
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<!-- properties -->
<property name="hibernate.connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="hibernate.connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
<property name="hibernate.connection.connection_string">Server=xxxx;initial catalog=xxxx;User ID=xxxx;Password=xxxx</property>
<property name="hibernate.show_sql">false</property>
<property name="hibernate.dialect">NHibernate.Dialect.MsSql2000Dialect</property>
<property name="hibernate.use_outer_join">true</property>
<property name="hibernate.query.substitutions">true 1, false 0, yes 1, no 0</property>

</session-factory>

</hibernate-configuration>

Db server is Sql Server 2000.
Mono is 1.2.4 version.
NHibernate is 1.2.0.

What's wrong?