I've got the nivoslider running, but it is HUGE. There is nothing in the documentation that explains how to size the slides reasonably. 

Speaking of which, I am finding very little information about image sizes in general (logos, as an example). It would be nice to know where to find that. What size is a featured image on a post, etc. 

Attached image of what I see, you can see the ridiculous size. 

EDIT - Can't see how to respond to this ticket. There is no reply anywhere. Hoping you see this - I attached a screen shot here for you to view. I am trying out the other slider right now. That should hardly matter, I am just looking for documentation or a solution on how to define the size of the slider. I assume you can provide that.