Help Why no notifications on Facebook?

[MeauxMeaux]

I have the new Evo.....I have the facebook application which came stocked on the phone to begin with....I love it. I think the specs are great and it's easy to use. However, i am not getting my notifications at all. I've gone to the settings on Facebook and i have everything checked the way its supposed to be......but still nothing.....unless i go in and Manually refresh. I'm getting them in my eMail...hours before i refresh on the app.....and still nothing comes through?? Any ideas??

THANKS!!!