So when I go to youtube, sometimes I will see all the thumbnails for the videos and other times all I see is the writing that gives the title for the videos. I can refresh the page or hit the youtube logo to reload the page and there is a 50/50 chance of it refreshing with the thumbnails or not. Also, at the end of a video, when the video stops, it usually shows a bunch of related videos. Sometimes it will show the thumbnails and other times the screen will be black but moving the cursor over the window will show the names of the thumbnails there and are clickable. So to sum up, sometimes, about 50% of the time, the thumbnails on the main page of youtube will not show up although the title will, and about the same percentage of time, the thumbnail recommendations at the end of a video will not show up although moving the cursor over the screen will show the titles of the thumbnails that I can't see. I have tried this with all of my addons disabled and a computer restart (not just the browser but the computer). The problem persisted I have cleared the cache and cookies for the browser and restarted the computer. Problem still there. Right now it is merely annoying, but I am concerned this may escalate and I end up not being able to view any videos. I am not having problems with video on any other sites. The problem is not there on internet explorer or chrome. I have attached a pic of the homepage showing the missing thumbnails and also a pic of the thumbnails that I should be seeing at the end of videos but that are sometimes missing.