As far as I know MCE simply uses the TV out with mirroring/cloning.
So what you run on you main desktop you see on the 2nd monitor.
Works fine.
Or with mce you can use an extender, a device connecting to the mce device but running a similar app as mce locally.
As said before, nvidia themselves do not support an application like mediaportal to run on a 2nd monitor as you guys would want it.
It was just not meant for direct X applications yet.
So what you run on you main desktop you see on the 2nd monitor.
Works fine.
Or with mce you can use an extender, a device connecting to the mce device but running a similar app as mce locally.
As said before, nvidia themselves do not support an application like mediaportal to run on a 2nd monitor as you guys would want it.
It was just not meant for direct X applications yet.