8.0.2 environment

User got married so her uername changed. Works on another MAC as long as she hasn't logged in prior to that computer with her former username. Webmail works and running it from a PC works. You get an error when you open up the client.
jsmith (old name)
jdoe (new name)

So she'll login with jdoe and it will log her in, but once it has drawn the inbox you get an error: jsmith.DOM.PO doesn't exists.

We've deleted and re-installed the client, deleted old pref files and hidden GW files and still cannot get it to stop looking for her old account.