Open Blender than in File Menu go to user preferences. Click on input button and under Mouse section enable "emulate 3 button mouse". Now you can use alt key instead of middle mouse button
Sorry for taking long to reply, what I've been saying is besides that the middle button doesn't work and that when I try going to user preferences like you replied, Blender closes. As I click user preferences Blender just disappears off the screen. Is their any way to fix this?