I second the running outside. Running on a treadmill is pure torture for me. I find is very boring.
Honestly though, if you really hate running maybe you should try another exercise. I was in the best shape of my life when I was in Taekwondo. I could run 4 miles and barely break a sweat, but 10 minutes of sparring really kicked my butt (both literally and figuratively).
Also try ... jumproping, hiking, swimming, spinning/biking, kickboxing, dancing, weight training, etc. Variety is a good thing. The more you enjoy what you're doing, the more likely you'll stick with it and stay fit.