When i install ubuntu, and the computer restarts it doesn't show the boot managaer so it always boots in windows 7. I tried to change the default os, and ubuntu wasn't even listed in it. Then I read a how to on it, it showed how to size the partions and make them correctly, but it still didn't work. I tried easyBCD and still no success. I've tried installing it about 4-5 times and i still can't get it. What can i do to fix it?