"PowerUser" <a@b.com> wrote in message[color=blue]
>
> I was experimenting changing display effect schemes yesterday. Went to no
> frills (all check boxes unticked) to Windows Classic to Windows Standard.
> Now when I try switching back to Aero (Glass), the option simply isn't
> there in the Appearance menu. Windows Vista Basic (XP like), Standard and
> Classic are the only ones that show up in Appearance properties. I do not
> have transparency or flip 3D.
> Thanks[/color]

This solution was given by HSE at microsoft.public.es.windowsvista, and it
works fine.

Regedit:

HKCU\Software\Microsoft\Windows\DWM\Composition

Value Data: 1

HKCU\Software\Microsoft\Windows\DWM\CompositionPolicy

Value Data: 2


Restart system and enjoy.

Greetings,

Santi DeFerrol