Security logon in WinXP

From: Alex1952 (anonymous_at_discussions.microsoft.com)
Date: 08/26/04 

Date: Thu, 26 Aug 2004 00:33:58 -0700

 
Very often I experience a problem in both WinXP Home and
Pro.
When I start typing a password login, e.g. to a bank,
typed letters frequently
automatically jump to upper window (User Name) and became
visible in my display??? And may be, for somebody else
who try to steal my information???

What is it? WinXP fraud or something else??

Thank you for any information.
Best, Alex