Using Outlook 2002, Windows

When in Contacts, I used to be able to do FIND, then enter a specific
word of text, then FIND NOW, and it would find all contacts where the
word existed in the large text box.

So, if I created a contact and wrote a memo saying "this guy is an
astronaut," but later forgot the guy's name, I could do a FIND NOW for
the word "astronaut" and it would find the contact entry for that guy.

This same version of OL2002, on this same computer, will no longer find

the word "astronaut" if it isn't entered in one of the dialog boxes --
name, address, company name, etc. -- or if I didn't create a separate
"category" for "astronaut."  The only thing that's changed is that my
database of contacts has grown to nearly 2,000 entries.

Does anyone know why OL2002 no longer finds words written in the large
text box containing notes about the contact, and how I can make it work

again?

Thanks,