Two users, two yahoo acconts, one pc

I have a yahoo mail account and have been using Outlook 2000 as my client. Recently, I tried to set up my wife’s yahoo mail account so she could use Outlook as the client too. I set up mulitple user profiles and accounts in Outlook. When I start-up under my profile and access Outlook, I only see my account listed (Tools|Accounts). However, both my emails and my wife’s emails are downloaded from our yahoo accounts whenever I send/receive mail. Any suggestions?