I purchased a new computer that came with a trial version of Office 2003. This version expired Saturday with no warning leaving much of the software disabled so I installed my Office XP Professional. This installation caused immediate conflict in my Outlook and I have been unable to get my .pst files since. I uninstalled both versions of Office and reinstalled my XP but still am unable to get XP, Outlook Express, or Mozilla Thunderbird to import or work with my pst files. I get MAPI profile error! I've just begun a new business and have critical data in these pst files. Any help will keep me from jumping.