since ~2 months I experience streaming problems on warcraftmovies.com. The quality is much worse than it used to be (perfectly smooth). I don't experience this problem on youtube. This problem I experience makes me enjoy watching movies much less.

It started when I manually updated Flash. Since then, I sometimes did and sometimes did not experience this problem. Now, I updated a new Java version and I experience the same problem again.

What can I do to fix this? Is anyone else experiencing the same thing?