Gary,
There is a problem sometimes. How does your problem show itself?
Here, the video loads and the first 2 seconds play...then it sticks. This can go on for a half hour or more. I log off, and log back on an hour later and everything is back to normal...NO clue what it is. I am guessing it might be heavy trafic
Yes, this Youtube stuff is very finicky. For lack of better knowledge about the subject, I blame it on the huge traffic on that site. Imagine when say 30 million computers try to download at the same time. There's bound to be a traffic jam.