Avatars stopped moving

On many forum people have animated avitars, they move on my other computers but they stopped on mine. Anybody have an idea why? Is there a setting?

I have 2 computers, one is wireless and the other is connected by cable. The cable one has developed the same error as yours while the newer wireless laptop works fine. Have tried to find out why but no luck so here’s hoping this time. Thought I would let you know that you are not the only person experiencing this problem. Have the wires crossed or should I say fingers crossed someone has the solution to our problem