I am from IRAN, As you know YouTube is filtered here. We use proxies to bypass filtering but unfortunately after opening YouTube's site the content(videos) won't display. I have tried using last version of Flash so that cannot be the cause.
Is it true that usually proxies have problem showing some content like videos? If it is, how come one proxy works fine for one person and has issue for another one? Could it be due to a server problem like not supporting Flash or ...?
Do you know what is the reason and how to overcome this issue?
By the way when we could use VPN we did not have such a problem at all.