Hi there well we've had Ginger for a month and a half actually today. since we've had her, she was curious about one of our cats, Rebel. When she would approach Rebel, the cat, would hiss and swing a paw. I figured that since she liked both Shadow (14yrs old cat) and Mademoiselle Kama (3month old kitten), this would pass, well it has not. She runs after Rebel wanting to get him. She really goes after him she's barking, I have to actually say her name a couple of times before she actually stops. what can I do to stop her??