StartCache: Error 0x80070002: failed to get download: 90A40409-6000-11D3-8CFE-0150048383C9

Ran into a HUGE installation problem when I attempted to install SQL Server 2005 RTM on my personal computer. I had SQL Server 2005 Beta CTP installed before. I kept getting the OWC11 installation failure message. I ended up manually install the OWC11 component with logging turned on... The log file tells me it's the infamous : 1603 problem.

Action ended 21:33:45: ProcessComponents. Return value 1.
Action 21:33:45: StartCache. Starting cache of cabinets to local installation source
Action start 21:33:45: StartCache.
StartCache:  Error 0x80070002: failed to get download: 90A40409-6000-11D3-8CFE-0150048383C9
Action ended 21:33:45: StartCache. Return value 3.
Action ended 21:33:45: INSTALL. Return value 3.
Action ended 21:33:45: ExecuteAction. Return value 3.
Action 21:33:45: TheFatalError.
Action start 21:33:45: TheFatalError.

I ended up cleanning two registry keys which finally made it work:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\Delivery\90A40409-6000-11D3-8CFE-0150048383C9
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Delivery\SourceEngine\Downloads\90A40409-6000-11D3-8CFE-0150048383C9

Hopefully it will help if you run into the same problem.