I have 9 dragon souls but cannot unlock shouts, what do I need to do? [duplicate]

Possible Duplicate:
Dragon souls not activating new words
How to Unlock New Shouts

I have acquired nine dragon souls but am unable to unlock shouts. What am I missing?

(I've searched for this but the other questions ask about slightly different scenarios, such as not having enough dragon souls, or the game being buggy and not giving dragon souls after killing a dragon. Mine appears not to have that bug as it shows 9 in the bottom right corner)

Edit: Do I need to unlock all the 'words' for the shout? If so why isn't that the message?

Edit: I am such a noob. I was pressing the wrong key. I was trying to 'equip' locked shouts which is what caused the message. I tried all my other mapped keys and the one I have mapped for 'drop item' is the one that triggered the option to spend a dragon soul. It's still a misleading message. It should say "Shouts need to be unlocked before you can equip them"

Solution 1:

This seems to be a (rather unfortunate) bug. Yahoo answers lists a possible solution

• Un-equip your current shout. (Highlight, Press (E))
• Double-check the bottom right of the shout screen. You should see (#) Dragon Souls.
• Save to a new save file (not quick-save)
• Close and reopen Skyrim, load the new save.
• Go to the bottom Greyed-Shout in the list and attempt to unlock it.
• If that shout fails move UP the list of shouts.