Per @TeamYouTube 's request, cleared AGAIN all my data out of every browser.
Same lock up points. Videos will NOT play. In Opera, in FF, in Chrome, no matter what... YOUTUBE will not play videos.
Very frustrating :(
I still have to refresh a video many times but I can now USUALLY make it through a video. There are still a few I cannot get through to save my life, but I can watch a LOT more than I had been.