"michael" wrote in message
...

Nope, permissions are just fine.

Clearly not, if you can't open the PST.

I can't get it to work even with a fresh (new) .pst file. However, if I log
on to the old domain, I can edit/add objects(contacts, calendar events...)
without a problem to the same file. I can create a blank .pst and it's works
fine. Log back on to the new domain and I get the error we're discussing.

As far as user/domain rights, I have local admin rights(identical rights on
both domains).

Take ownership of the PST and you should be OK.
--
Brian Tillman [MVP-Outlook]