I need a fix/help. I'm up to the part in the main quest where you have to unite Imperials and Stormcloaks, but I can't seem to find the dialogue option to get Ulfric to go to High Hrothgar. Every time I press talk he tells me that Grunthar or whatever his name is has a quest, but then I talk to him and he says something along the lines of: "I can't believe you got Ulfric to meet with the Empire! Seems like a waste of time to me." But Ulfric is still sitting in his chair?

EDIT: And my quest journal still says I need to get Ulfric to agree :/

Help please?

Note that I have also installed the patch.