Hi, I try to install Biztalk2009, with SQL 2008R2CTPNov, on Win Server 2008. I'm blocked at the configuration step "groups" :

[19:22:18 Info Configuration Framework]Configuring feature: WMI
[19:22:18 Info BtsCfg] Entering function: CBtsCfg::ConfigureFeature
[19:22:18 Info BtsCfg]  Configuring feature: WMI
[19:22:18 Info BtsCfg] Entering function: CBtsCfg::IsSelectedAnswer
[19:22:18 Info BtsCfg] Leaving function: CBtsCfg::IsSelectedAnswer
[19:22:18 Info BtsCfg] Entering function: CWMI::Connect
[19:22:18 Info BtsCfg] WMI is already connected
[19:22:18 Info BtsCfg] Leaving function: CWMI::Connect
[19:22:18 Info ConfigHelper]    NT group BizTalk Server Operators was not created because it already exists
[19:22:18 Info ConfigHelper NetAPI Info: ] Le groupe local spécifié existe déjà.
[19:22:18 Info ConfigHelper]    NT group BizTalk Server Administrators was not created because it already exists
[19:22:18 Info ConfigHelper NetAPI Info: ] Le groupe local spécifié existe déjà.
[19:22:18 Info BtsCfg] Entering function: CWMI::CreateGroup
2010-01-14 19:22:18:0527 [INFO] WMI CWMIInstProv::PutInstance() try to acquire lock
2010-01-14 19:22:18:0539 [INFO] WMI CWMIInstProv::PutInstance() lock acquired successfully
2010-01-14 19:22:18:0546 [INFO] WMI CWMIInstProv::VerifyMgmtDbCompatibility(CInstance) started
2010-01-14 19:22:18:0553 [INFO] WMI CWMIInstProv::VerifyMgmtDbCompatibility(CInstance) finished successfully
2010-01-14 19:22:18:0564 [INFO] WMI CWMIInstProv::PutInstance(MSBTS_GroupSetting.MgmtDbName="BizTalkMgmtDb",MgmtDbServerName="ECTXEVLBZTK") started
2010-01-14 19:22:18:0572 [INFO] WMI CAdapter::ConvertWMI2Admin() started
2010-01-14 19:22:18:0581 [INFO] WMI CDataContainer::SetWCHAR() - Possible problem: item value is overwritten
2010-01-14 19:22:18:0591 [INFO] WMI CAdapter::ConvertWMI2Admin() finished with HR=0
2010-01-14 19:22:18:0611 [INFO] WMI QueryStringValue query regkey 'MgmtDBServer'
2010-01-14 19:22:18:0620 [INFO] WMI CAdmCoreGroupInst::TryCreateNewGroup() started
2010-01-14 19:22:18:0632 [INFO] WMI Creating Mgmt database...
2010-01-14 19:22:18:0641 [INFO] WMI Calling CDataSource.Open() against ECTXEVLBZTK\master
2010-01-14 19:22:18:0792 [INFO] WMI CDataSource.Open() returned
2010-01-14 19:22:18:0810 [WARN] AdminLib GetBTSMessage: hrErr=80040e1d; Msg=Error "0x80040E1D" occurred.; 
2010-01-14 19:22:18:0824 [WARN] AdminLib GetBTSMessage: hrErr=c0c02524; Msg=Failed to create Management database "BizTalkMgmtDb" on server "ECTXEVLBZTK".
Error "0x80040E1D" occurred.; 
2010-01-14 19:22:18:0835 [ERR] WMI Failed in pAdmInst->Create() in CWMIInstProv::PutInstance(). HR=c0c02524
2010-01-14 19:22:18:0846 [ERR] WMI WMI error description is generated: Failed to create Management database "BizTalkMgmtDb" on server "ECTXEVLBZTK".
Error "0x80040E1D" occurred.
2010-01-14 19:22:18:0860 [INFO] WMI CWMIInstProv::PutInstance() finished. HR=c0c02524
[19:22:18 Error BtsCfg] f:\bt\890\private\source\setup\prod\btssetup\btscfg\btswmi.cpp(358): FAILED hr = c0c02524

[19:22:18 Error BtsCfg] Failed to create Management database "BizTalkMgmtDb" on server "ECTXEVLBZTK".
Error "0x80040E1D" occurred.

It seems that the install can't create Managment database, But the SSO database is created OK...

Has someone a clue ?