@LondoBaron
I am *****.
I thought that if you owned at least one card you could stop the automatic loading of previews. Are you saying that isn't true?
You can set the Previews to never, and that stops any new ones.
but the Ones already on you Preview list, will have to Manually be removed.
Go to Settings ( the Coged Wheel Icon )
check Advance Settings box
Scroll down to Controls
drop down the Contextual Menu
Add the Enable / Disable option to the right click menu.
Then one at a time, play a preview, right click on it, then select Disable from the Wheel.