I jut got my new Mini with Mavericks installed on it.

I just noticed that applications suck as Preview and Safari do not have the arrows at the top and bottom of the scroll bar like their was in my old Mini with Snow Leopard. Is this the new way? Is there a way to get them back?

Also I'm using a Logitech BlueTooth mouse and the wheel works opposite of the way it did in Snow Leopard. I used to turn the wheel toward me to move down the page now when I turn the wheel toward me I move up the page. Is this part of Mavericks of did I do something backwards?

Thanks