hi all im install wen 2008 web server in ferst timm he tel me must change administrator password but he tel me agine (unable to update the password . the value provided the new password does not meet the length complexity, or hestory requirements of the domain . help me plz

By default the password complexity of Windows Server 2008 is enabled. After installation of Windows Server 2008, the system will ask us to set a complex password before the first logon. The password set must meet the complexity requirements, which means the password lengthshould beat least 7 characters and the password should contain at least three of the following four character groups: English uppercase characters (A through Z) English lowercase characters (a through z) Numerals (0 through 9) Non-alphabetic characters (such as !, $, #, %) Furthermore it may not contain a significant portion of the username. Examples: Password01! P@ssw0rd Pa%%wo4d