Replying to Vimeo Isn't Working

So, recently Vimeo's videos haven't been loading for me. They'll buffer some, and just stop. I can the page up for as long as I want, but when I come back they'll be at the same place. In the past, Vimeo's videos have loaded fine for me, if not a little slow but they'll load eventually. So I'm not sure if it's a problem with my internet or Vimeo, although most people seem to have no trouble watching videos so it's probably a problem with my internet/computer.

Anyway, I was wondering if anyone else is having this problem or if anyone has a suggestion as to solving it. By the way, I use Firefox, although the same thing happens on Internet Explorer.