Random System sound #2

[Carlo I2HLY]

Running XP PRO SP2
I often and randomly get,without any apparent reason, a system sound
(message or notice 2) and no window pops out notifying a problem.
I had a look to Event Viewer,and this is what I can see recurrent:

System
ID 2 ParVdm.sys
ID 7000 No file to start service Bluetooth Port Client Driver
ID 7000 No file to start SDS service

ACEEventLog
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.05.13
Utente: N/D
Computer: CARLO
Descrizione:
0000000005: 2007-12-27 20:05:13:562 Exception <Killing CCC0 Process>: Il
processo con ID 3884 non è in esecuzione.
Exception Called by: ATI.ACE.MOM.Implementation.CCC0StateMachine::KillMe
processID:01452
threadIDMOM_STM_DelegateThread) domainNameMOM.EXE )
assemblyNameMOM.Implementation, Version=2.0.2861.40061, Culture=neutral,
PublicKeyToken=90ba9c70f846762e)
************************************************************************************************************************
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.05.13
Utente: N/D
Computer: CARLO
Descrizione:
0000000004: 2007-12-27 20:05:13:562 Rasing Error Event on CCC0 with PID#
3884
Error Called by:
ATI.ACE.MOM.Implementation.CCC0StateMachine::RaiseErrorEvent
processID:01452 threadIDMOM_StartComponent_CCC0)
domainNameMOM.EXE ) assemblyNameMOM.Implementation,
Version=2.0.2861.40061, Culture=neutral, PublicKeyToken=90ba9c70f846762e)
-----------------------------------------------------------------------------------------------------------
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.05.13
Utente: N/D
Computer: CARLO
Descrizione:
0000000003: 2007-12-27 20:05:13:562 Exception <Couldn't Start Component>:
Impossibile leggere da una porta IPC: Pipe terminata.--
Exception Called by:
ATI.ACE.MOM.Implementation.CCC0StateMachine::ThreadStartComponent
processID:01452 threadIDMOM_StartComponent_CCC0)
domainNameMOM.EXE ) assemblyNameMOM.Implementation,
Version=2.0.2861.40061, Culture=neutral, PublicKeyToken=90ba9c70f846762e)
***********************************************************************
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.05.09
Utente: N/D
Computer: CARLO
Descrizione:
0000000002: 2007-12-27 20:05:09:093 Exception <Killing CCC0 Process>: Il
processo con ID 3352 non è in esecuzione.
Exception Called by: ATI.ACE.MOM.Implementation.CCC0StateMachine::KillMe
processID:01452
threadIDMOM_STM_DelegateThread) domainNameMOM.EXE )
assemblyNameMOM.Implementation, Version=2.0.2861.40061, Culture=neutral,
PublicKeyToken=90ba9c70f846762e)
***********************************************************************
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.04.44
Utente: N/D
Computer: CARLO
Descrizione:
0000000007: 2007-12-27 20:04:44:062 Validation: Caste [0] is null
Error Called by: ATI.ACE.CLI.Component.Runtime.Runtime::Run
processID:03884
threadIDCCCThreadNew:Runtime) domainNameccc.exe )
assemblyNameCLI.Component.Runtime, Version=2.0.2861.39795, Culture=neutral,
PublicKeyToken=90ba9c70f846762e)
-----------------------------------------------------------------------------------------------------------
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.04.40
Utente: N/D
Computer: CARLO
Descrizione:
0000000006: 2007-12-27 20:04:40:265 No such profile
Error Called by: ATI.ACE.APM.Server.ProfileManager::ApplyProfileXml
processID:03884
threadIDCCCThreadNew:Runtime) domainNameccc.exe )
assemblyNameAPM.Server, Version=2.0.2861.39793, Culture=neutral,
PublicKeyToken=90ba9c70f846762e)
-----------------------------------------------------------------------------------------------------------
Tipo evento: Informazioni
Origine evento: ACEEventLogSource
Categoria evento: Nessuno
ID evento: 0
Data: 27/12/2007
Ora: 20.04.40
Utente: N/D
Computer: CARLO
Descrizione:
0000000005: 2007-12-27 20:04:40:265 GetSCaste() called with null parameters
Error Called by: ATI.ACE.CLI.Component.Runtime.Runtime::GetSCaste
processID:03884
threadIDCCCThreadNew:Runtime) domainNameccc.exe )
assemblyNameCLI.Component.Runtime, Version=2.0.2861.39795, Culture=neutral,
PublicKeyToken=90ba9c70f846762e)
-----------------------------------------------------------------------------------------------------------
+ others

Can anybody help?
Thanks
--
Carlo