Ok, run the config wizard again and choose the remove option, then uninstall MySQL, MySQL Administrator, and any other MySQL product using the add/remove programs option of the control panel. Then delet c:\program files\mysql
Download 4.1.8a (note the a) from the MySQL website and run the installer. Choose a standard configuration in the config wizard, and try command line again.
If command line works, download the latest Administrator from dev.mysql.com, do not re-install what you already have. Let's see if that works.
Mike Hillyer, Technical Writer
MySQL AB, www.mysql.com
Office: +1 403-380-6535
Mobile: +1 403-330-0870
Blog:
http://www.openwin.org/mike