You shouldn't have too restart... try this: (copied from a msg a couple of
days old... you may want to browse the msgs prior to posting...)

Open regedit...

HKCU\Software\Microsoft\Windows\DWM\Composition set to 1 (32-bit DWORD)

HKCU\Software\Microsoft\Windows\DWM\CompositionPolicy set to 2 (32-bit
DWORD)

Close regedit...

Restart DWM by opening a command prompt with administrative privileges,
i.e., run as administrator :

- Type 'net stop uxsms'
- Then 'net start uxsms'

If it works, don't thank me; thank PaulB.

Lang

"PowerUser" <a@b.com> wrote in message
news:AE9CF4DC-1F93-4A5C-8667-44690E2C52A4@microsoft.com...[color=blue]
> Hi
>
> 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.
>
> No drivers or display related software was installed.
>
> Has anyone seen this?
>
> Thanks[/color]