How can I change users?

how do I change users. When I go to the shut down method and switch users I get no change. Have tried everything on control panel.How can I change users?
Jimmy's got you covered if you're talking about switching from one account to another. But if you are asking how to switch from one sign name to another within and account, then I'll answer that just in case.



When you initiate a private message and the box opens, there is a pull-down menu (just above the text field at the bottom) labeled 'Send As:'. Click the blue arrow and all of the SN's on that account will be listed. Click the one you want and then type and send your message.



For chat rooms the pull-down box is at the top of the 'Join Room' box that pops up after selecting 'Join a Room...' from the 'Messenger' menu.



When you first create an alias, you will have to log out of messenger and back in before the name will show up on either pull-down menu.



-edit-



Wait... Sharon do you mean change users for your computer's main log in screen?

*face palm*How can I change users?
At the top of the page to the right of at%26amp;t Yahoo Answers, click [Sign Out] A new page will appear, click Sign In. A new sign in box will appear, on the left side of the box you will see 2 options the top one is the primary user and the second one is the secondary user. Select the second option and sign in.