Any Microsoft Outlook security experts out there?

I have the foresight to do regular backups of my files, so when my computer died it wasn't that big a deal to me. It just flat out died one day while I was out. No juice at all. Nada. Nothing. I thought the power supply would be a slam dunk but replacing the power supply did nothing. So- now I have to keep troubleshooting to determine which component is dead.

In the meantime though I am using my backed up files from a different computer. The only problem is that I can't access my Outlook PST file. I had the file password protected on the computer. I know the password, but that doesn't seem to matter. I have tried to open the file and I have tried to import from the file and I am repeatedly told I don't have access rights, blah, blah, blah.

Does anyone know how to make it ask me for the username / password credentials or something so I can "unlock" it or is there a way to simply remove the password protection? I realize that to some this may look like one of those veiled attempts at learning to hack someone else's email, but I think I have enough brownie points and respect around here for people to realize my request is genuine.

If you have a clue but don't want to share it with the less-morally grounded masses feel free to PM me.

Thanks