Vista - MSDN MVPs can you please help me...

Vista Media Centre Errors

I am logged in as Administrator Administrator is a member of the local
Administrators group.

When loading Windows Media Centre I get this error message:

Windows Media Centre
x You are currently logged on as a Guest. Windows Media Centre requires a
non-Guest account. If you need to change your user account type, contact the
owner of this system.

I have windows firewall disabled
The internet is working fine
I have UAC disabled ( I also tried enabled, made no difference)
I have windows defender disabled

Network Discovery = ON
File Sharing = ON
Public folder sharing = OFF
Printer sharing = OFF (no printers installed)
Password protected sharing = OFF
Media sharing = OFF

And if I try to select Network and Sharing Center/Media Sharing/Change... I
get this error message

Windows Media Player
! You are logged on with a user account that does not have sufficient
permissions to turn on media sharing.


I tried right clicking Media Centre Edition and selecting RunAs
administrator, I get the same "Windows Media Centre requires a non-Guest
account" error message.


--
Regards,
Hamish Ahern.