cannot open microsoft outlook

PLEASE HELP! I am a windows 2000 user - whenever I try and open microsoft
outlook I get a message that says “microsoft could not open the file
containing the folders used to send and receive email messages, creater
appointments, and open the address book. Please select from the options
listed below: Create a new personal folders file, or Open an existing
personal folders file�. Then when I click on “Open an existing personal
folders file�, it will not allow me to open my folder (and as I only have one
existing personal folders file that is where all my emails are stored!). I
have however been able to open a new personal folders file and to continue to
work in Outlook, but in a completely new folder . I then tried to import my
old existing personal folder file from within Microsoft Outlook but it will
not allow me to do this. HELP PLEASE, ANYONE…
--
Dan J