Anyone else have this trouble?

I have my 700w and Pocket MSN works fine.

I first logged in using my personal account, I clicked on SWITCH USER and entered my id & pw for my work account and it logs in, but on my treo screen, all converstions show my display name as the one from my personal account. When I go to OPTIONS and the messenger tab, my display name shows the correct one for my work account.. so what gives?