Thank you very much http://windowsxp.mvps.org/useracc.htm you solve my problum
When you double-click User Accounts applet in the Control Panel, the User Accounts applet opens, but it may be completely blank. The buttons Back | Forward | Home are displayed in the dialog
To resolve the problem, type these commands from Start, Run dialog:
If that does not help, execute the following commands as well
Thanks again.