Slow logon to domain(Nt4)

A Hp notebook(nx6120) with WindowXp-SP2 experience a slow logon to NT domain, it takes 2-3 mins to logon when the system start up, but the subsequent re-login is fast.
The user profile when logon to other Pc is fast.
The system is slow and having intermittent hang.
The LAN properties icon has somehow dissapear after running MSConfig.
Any suggest …

Tey