Hi friends of distributed transactions

Does anybody have seen this exception before? My Local DTC has XA-Transactions enabled and my db user has the xa rights as described. I also read something about a bug inside MSSQLServer or MS Distribution Transaction Coordinator, but don't know how to handle it. Can I ignore this warning? How critical is it?

18:15:24,754 WARN  [com.arjuna.ats.jta] (Periodic Recovery) ARJUNA016027: Local XARecoveryModule.xaRecovery got XA exception XAException.XAER_RMERR: javax.transaction.xa.XAException: Fehler bei der Fu
nktion "RECOVER:". Status: -3. Fehler: "*** SQLJDBC_XA DTC_ERROR Context: xa_recover, state=1, StatusCode:-3 (0xFFFFFFFD) ***"
        at com.microsoft.sqlserver.jdbc.SQLServerXAResource.DTC_XA_Interface(SQLServerXAResource.java:550)
        at com.microsoft.sqlserver.jdbc.SQLServerXAResource.recover(SQLServerXAResource.java:728)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnection.recover(XAManagedConnection.java:358)
        at org.jboss.jca.core.tx.jbossts.XAResourceWrapperImpl.recover(XAResourceWrapperImpl.java:162)
        at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.xaRecovery(XARecoveryModule.java:503) [jbossjts-4.16.2.Final.jar:]
        at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.resourceInitiatedRecoveryForRecoveryHelpers(XARecoveryModule.java:471) [jbossjts-4.16.2.Final.jar:]
        at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.bottomUpRecovery(XARecoveryModule.java:385) [jbossjts-4.16.2.Final.jar:]
        at com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule.periodicWorkSecondPass(XARecoveryModule.java:166) [jbossjts-4.16.2.Final.jar:]
        at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.doWorkInternal(PeriodicRecovery.java:789) [jbossjts-4.16.2.Final.jar:]
        at com.arjuna.ats.internal.arjuna.recovery.PeriodicRecovery.run(PeriodicRecovery.java:371) [jbossjts-4.16.2.Final.jar:]

I am jusing Jboss7.1.1, Bitronix Transaction Manager 2.1.3, MSSQLServer2008 Express with sqljdbc4-4.0.jar Driver