Well, the problem is that, your laptop isnt a proper recording device. Even if you connect in any port possible, you'll find yourself with unwanted noises, poor A/D converters (which will result in poor audio quality) and a whole bunch of other problems.
I recomend you to read the "Newbies" thread. There you will find a bunch of useful information on how to get started.
One thing I can say for now is...dont use your laptop as your primary recording medium. Buy a cheap single channel interface and you can do a lot more with that.
Good luck for you, dude.