ubuntu won't load, shows sceen with GNU GRUB

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http://askubuntu.com – I downloaded Ubuntu 12.10 to run alongside windows, and when I start the computer up, I get the "Please select operating system" screen, and I choose Ubuntu. However, I don't see anything that looks like Ubuntu, (or at least not what it was like in the online tour) and I get a screen that shows something like: Try (h0,0): NTFS5: for a split second, then shows: fâ~ ▲0000h for another second, then it shows: GNU GRUB 2.00-7ubuntu4 Minimal BASH-like editing is supported. For the first word TAB lists possible command completions. Anywhere else TAB (HowTos)