We have used Outlook Express with Act 2004 for the past 3 years with no problems. The last time we did regular maitenance functions on the data base, we then encountered problems. When you push the "to" button it shows that we are using Act contacts, all contacts, but the list that comes up is only contacts added since the last maintenance. We can still see the whole Act contact list by switching to "look up" if the look up is all contacts. I suspect I have a corrupted adress book cache but how do I fix?