In case anyone is interested, when I could not see certain videos posted before, I just saw an X where the video should have been. I finally figured out the problem. It was strange because some worked fine and others would not. What I discovered is that in my browser, IE 11 in the add-on settings, my Shockwave Add-on was disabled. I enabled it and all is working now. I thought I would share in case others have the same issue. It was driving me crazy and I have no idea how it got disabled but that is what my problem was.