I have Windows 7 and had a dual boot with Wubi. I recently installed BackTrack 5 on my hard drive and in doing so messed up my Ubuntu 11.10, so I downloaded the new Ubuntu 12.04 and burned the image to a CD. When I restart to the CD/DVD drive the GRUB loader comes up and not the Ubuntu install.
I have checked the contents of the image and all the files seem to be in order. When I try to run from command in BT5r2 its unable to find autorun. So I burned another disc and have the same problem. It's unable to locate autorun and it wont autorun from restart and my BIOS is correct. I even tried from USB and got 'unable to find OS'.
I don't have a Windows 7 install disc. I am looking to do a full install of Ubuntu 12.04. Any help would be appreciated.