Hi Craig,
The AnimatedCanvas doesn't have any scrolling capability, but should work fine in a ScrollViewer. Something like the following code works fine:
<ScrollViewer>
<views:AnimatedCanvas>
<Button views:AnimatedCanvas.Left="25" views:AnimatedCanvas.Top="25" Content="TopLeft" />
<Button views:AnimatedCanvas.Right="25" views:AnimatedCanvas.Top="25" Content="TopRight" />
<Button views:AnimatedCanvas.Right="25" views:AnimatedCanvas.Bottom="25" Content="BottomRight" />
<Button views:AnimatedCanvas.Left="25" views:AnimatedCanvas.Bottom="25" Content="BottomLeft" />
</views:AnimatedCanvas>
</ScrollViewer>
If you are getting exceptions, then please put together a small sample project and email it over to our support address. Once we have that project, we can look into the issue. Make sure to remove any executables from the zip archive.
If you are trying to use the AnimatedCanvas in a ListBox, then you would have to set a MinWidth/MinHeight on it. By default, it will only take as much space as it's given, which in the case of the ListBox would be enough to fill the ListBox.