MacBook Pro blue Screen of Death fix?

My MacBook Pro 13" froze the other day when I tried to open my web browser. I tried just waiting a little while to see if the problem might sort its self out, but after about twenty minutes I decided to power down the laptop and just try rebooting. Since then whenever I power on the laptop it goes through the white loading screen, then goes to a blue screen for quite a while, and then to my desktop background image. It doesn't fully load the desktop though, and then cycles between the blue screen and my desktop background image. I've tried safe booting the laptop, but after I input my password it would just freeze again. Does anyone know of a solution to this problem?