before you ask,yes,i've searched...

i've been going through all my clients addresses and ading them to my Contacts folder in Outlook 2003.However,i keep getting the same message "The Messaging interface has returned an unknown error....etc"
I did a search,found my way to this forum but the fixes were for earlier versions of Outlook.I'd really like to know (in laymans terms please!!)what this means,and if it's possible to fix it(allow larger tables?????what does this mean)...

Thanks anyone...Bird.