I need some help with the issue which I am facing. I want to use Backtrack 3 on the Macbook Pro which is installed with Mac OS X 10.4 on it. I have heard that Wireless card does not work while using BackTrack 3 on Macbook. Therefore I want to know if USB wireless adapter is necessary for Backtrack on Macbook? Also Can I boot Backtrack system from the external drive? Please help.