I had a similar problem mike.
but my problem was that my instant search did absolutely not work as i wanted.
i searched for contacs and i got no result.
i searched for attachments and had all mails of my outlook as result. (..)
I am now using a search tool named lookeen and I can tell you that this tool saves a lot of time and trouble.
I know this answer is not the answer you wanted, but maybe i helped you a bit.
p.s. lookeen will find your contacts, promised 😉