desktop composition

I have the following configuration

CPU Amd X2 4200
RAM 2GB in dual channel configuration
Nvidia 6800 ULTRA

When I use multiple windows in windows vista beta 2 I get the following
message


"would you like to disable desktop composition ? "

why this message appears ? because its beta or i don't have a good gpu ?

It is not because it is beta for sure.
The system realized that video subsystem uses too much resources, it is
either a bug somewhere or gpu issues

--
Regards,
Yuriy

This posting is provided "AS IS" with no warranties, and confers no rights.
"dimitris_greece" <dimitris_greece@discussions.microsoft.com> wrote in
message news:28FE2788-2C69-4A9B-A173-F478FA88041A@microsoft.com...
> I have the following configuration
>
> CPU Amd X2 4200
> RAM 2GB in dual channel configuration
> Nvidia 6800 ULTRA
>
> When I use multiple windows in windows vista beta 2 I get the following
> message
>
>
> "would you like to disable desktop composition ? "
>
> why this message appears ? because its beta or i don't have a good gpu ?
>