I've been going through many forms and different pages, but I can't find a suitable answer to my specific problem. I've wiped Windows 7 clear of my laptop, successfully installed Ubuntu 13.04, and run it in it's trial mode a few times, but I can't get it to boot automatically without the disk OR figure out how to use Ubuntu without the trial mode; I'm guessing that occurs after it boots successfully. I've changed my boot order to boot from the hard-drive first, but it just flashes an underscore at the top left corner, waiting to find an OS I assume. Any help? The specs on the laptop are fine and can run it, so I don't know why it won't boot.