So I installed Ubuntu using the Wubi installer. I installed 12.04 LTS. I am running on Windows 7 as my primary OS. Everything was working fine until I shut down my computer. I was then greeted by "GNU grub.... Press tab to view a list of commands." The problem I face similar to the one in this video: https://www.youtube.com/watch?v=prdt7EXEIq4
So I uninstalled Ubuntu and reinstalled it, and did a few tests. If I restart my computer, it boots back into Ubuntu just fine. But if I shut it down entirely and then try to boot back into Ubuntu, I get the error again. From what I see, most people who have grub errors seem to be booting from the live disk. And I know that Nvidia apparently causes some problems and one fix is to boot into "nomodeset" but when I look at the screens provided in those fixes, it seems like they get a different prompt than me? I know I have a Nvidia graphics card.