I have a problem which goes like this. When I click on Outlook 2010, I get an error that says that Outlook.pst (I believe) is not an Outlook data file. So I am curious what I can do to fix this problem? I tried reinstalling Office, and that does not work, nor does deleting the offending file. Any suggeestions as to what I can try next? I am running this under Parallels on a Mac, under a network. But, it works fine on the PC, just not on the Mac.