Thanks Steve. I couldn't do what you suggested from the client machine (password problem) but I was able to do it through the console by assigning Company and User Account to the new machine.
Regarding the password, clicking "Forgot Password" responds with "Please contact your storage provider". Am I my "storage provider?" What I thought was the User Account password didn't work on the client.
Of course, I could be mistaken about the password I tried to use. Can you tell me about the difference between "Change password" and "Reset password and send instructions?" I'm a little concerned about not being sure about what the password actually is.