my windows xp computer crashed, and my geeky neighbor suggested i try a “live CD”. anyway i put this thing in my computer, restarted it and opted to “try ubuntu without any changes to your computer” this is what i’m typing on right now.it’s so fast !.my queston is, is is there a catch? is it secure ? can i get a virus easer than windows? are they tracking me right now?why is something this awesome free? it sounds too good to be true.