Failed to create the configuration database. Reason: The language is not supported on the server.

This may occur if MOSS Beta 2 uninstall removes the server language registry file. The error will occur when you try to install a new instance of MOSS (RTM).

To fix it:

• Open notepad and paste the following:
  
  Windows Registry Editor Version 5.00
  [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\12.0\ServerLanguage]
  "1033"=""
  


• Save this file as fixlanguage.reg on the server desktop and double click to run selecting yes when prompted.
• Run the SharePoint configuration wizard.