[ubuntu] Help installing Ubuntu to dual boot with Windows 7

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http://ubuntuforums.org – Hey everyone. I am having a little trouble installing Ubuntu 12.04 to dual boot with Windows 7. I have tried it two ways. I have tried to install it using Wubi, but when i boot it, i get stuck at a GRUB prompt. I have also tried to install it using a USB stick. I got all the way to clicking install, but instead of letting me install alongside Windows 7, it says that no operating system is detected. My two options from this screen are a clean install, or to choose where to install it. Does anyone have any remedy for either of these issues? Or a better way to install it? Any help is greatly a (Hardware)