Outlook crashes, can't create or change settings

I recently had an anomaly with a client and his fresh install of Windows 7 running Outlook 2003 SPK3. It would not save his junk mail settings or allow him to edit his data file title or create a new one. What we tried 1st:A repair & re-install but to no avail, we even repaired the pst with a scanpst.exe. When trying to open a fresh install of outlook 2003 we would get - Error message when you