Please, somebody help me about it! I'm already on the top of the mountain but I can't shout in front of the guys.. Any ideas? I would be really greatful!=)

can you be a bit more specific? exactly what quest? is it where you learn the shout in front of them and are supposed to use it? many people that have had problems using shouts was because they had re-mapped their keys. if you've done that, try going back to default settings and giving it a go.

Its because you are not being specific enough.

Obviously, the shout is enabled since you've killed a dragon. Now left click it in your MAGIC inventory and then press Z when you're ready to use it.

just because they've killed a dragon does not mean that they've 'unlocked' the shout which may be the OP's problem too.

@OP....if you've gotten the words for the shout you need to 'unlock' it by spending a dragon soul. open the shouts menu (on the magic menu). scroll down to the shout 'unrelenting force' and hover your cursor over it. now, on the bottom of the screen it will tell you what key/button to push to unlock it.

Yes this is the quest where I have to prove that I can shout because I killed the dragon in Whiterun. But even if I press "E" or click on the Unrelenting force shout I can't use it. And I pressed Z, too. I don't know what the problem is..

see my prior post about 'unlocking' the shout.

Thank you for the advices! Unfortunately my shout still not working.. Could it be a problem that an illusion spell is on, too?

no, an illusion spell should not affect your ability to shout.

a.) what platform do you play on?
b.) have you re-mapped your keys/controls at all?

I play on my notebook, and I think I don't have problems with the keys, I know what their function is and I did everything that you told me to do, I unlocked the shout with "R" and it said that I spend a soul and pressed "Z" when I wanted to use it.

lol

when you get to the graybeards they specifically want you to shout unrelenting force at them, and at the beginning you only know FUS, the one you learned from the first dragon you killed after going into bleak falls barrow. make sure you have favorited or at least selected this shout to be used on the Z key. (it will have a hollow arrow pointing to it in your favorites and in your shouts menu)

then the four of them teach you RO and you test it by using it to blast down their constructed images. you do not have to unlock or equip this shout because it adds automatically to the FUS that you learned before and have already demonstrated.

then the four of them teach you WULD in the courtyard and you test it by seeing if you can get out of the gate when Borri opens it before it closes again. you will not have to unlock it, you will have to go to magic-shouts and select it so that it can be used when you hit the Z key.

Hopefully some of this is helpful?