Need some help with Vista Ultimate...please look

>I am running Vista Ultimate x64 and all has been running fine. Last night I
> was doing some system clean up and after one of the reboots when I went
> into
> "Administrator Tools" the only thing there is the following:
>
> Microsoft .NET Framework 1.1 Configuration
> Microsoft .NET Framework 1.1 Wizards
>
> That's it! There should be more and I confirmed as such on my Vista
> Enterprise laptop. Anybody got any ideas on how to reset the Control
> Panel?
>
> FWIW, I created another another account and gave it admin priviledges and
> it
> has the same nearly empty Administrator Tools.
>
> This is a new one to me!