Vista - Shut down problem

Help!

I have the VISTA home basic and needed to set up a user account for my wife
so that she could hace a separate e-mail account. I created hre user account
and then switched into it from the administrator account to set up the mail.
Now I am stuck in her account and cannot either shut VISTA down or switch to
the administator account.

The help that MS's Ramesh Srinivasan provided to Jason Coon for a similar
problem on 1/28/07 does not seem to work on VISTA Home Basic. The geeks who
sold me this new machine gave me no option for a different version of VISTA.

Thanks for any help you can offer,