Question : Outlook 2007 closing down randomly

got a new machine setup and the only software loadied onto it is XP Pro SP2 and office 2007 SBE.
Having a problem where outlook just closes down randomly.
checked the error logs and it just reports that outlook sesion ended unexpectedly.
tried to run a repair, still the same
uninstalled and reinstalled, still the same
ran the pst tool in office folder and repaired 3 errors, still the same

Any ideas, tried googling the problem but no clues and searched EE but nothing.

Answer : Outlook 2007 closing down randomly

well got to the machine again.
turns out it was the add-in for CA internet security suite Anti spam. dissabled it and so far its been working ok.