Outlook 2002 on Windows 98

[Djoezz]

Hi all,

I can't run Outlook 2002 on all of Windows 98
workstations (have tried many many times) in my work
place (illegal operation error). Installation is fine,
the problem happens only when start setting up a profile
that uses local mailbox (.pst) however it works fine if
it uses server's mailbox. At first I thought it is only
related to a particular machine but it happens to all of
windows 98 machine in my office.
Anyone had experienced this before?

TIA,
Djoezz