Contents pane missing in Windows NT Explorer

When I log on to my PC as a Domain user and start Windows NT Explorer, it
only displays the Folders pane and not the Contents pane. However, if I log
on as Administrator, it works fine.

BTW, it's a SBS environment, so my user is a member of the Administrators
group, so I don't think it's a permissions problem.

Also, the PC is for a new user, the previous user has now left, so I don't
know if this has just started happening.

Any suggestions would be much appreciated.

Thanks,

Gary