For some reason video links from this site are not working properly to youtube.
Rediting the address to remove http:// seems to make the link work.
I have edited some of my links and put h**t:// and then the video link seems to work.
Otherwise I have found the only way to view links is to look at what the link is by hitting the "quote" reply and copy and pasting links.
A common error message is the video link is no longer available, however when the video link is put into a browser the link and video work properly.
Sometimes the video appears to start to load and "hangs up" and never finishes loading.