Check this:

[url]http://www.vistax64.com/tutorials/117627-flip-3d-enable-disable.html[/url]

"liz11" <liz11@discussions.microsoft.com> wrote in message
news:10041307-CFD3-476F-B18C-4170897BF6EC@microsoft.com...[color=blue]
> Hello,
> I been trying to find all that for quiet a while and i have no success. I
> tried search and that couldnt find it. Where is the start pearl etc etc.
>
> Thank you..
>
> "Mamarec" wrote:
>[color=green]
>> Hi,
>>
>> I had the same problem.
>> Click the start pearl and key services.
>> Click on service and make sure Desktop Windows Manager Services is set
>> to
>> start 'automatic'. If it's not double click and make the necessary
>> changes.
>> This worked for me. I have my aero back which made 3d possible.
>> Good luck
>>
>> "Holly" wrote:
>>[color=darkred]
>> > My aero 3d stopped working I also lost the option to preview the open
>> > tabs.
>> > Instead of the 3d windows I just get a list of icons in the middle of
>> > screen.
>> > Does anyone know how to fix this?[/color][/color][/color]