I have windows 7 and videos online, like on facebook or some of the more obscure places won't play videos, they blink in and out, I can hear the sound. Even my own video that plays off line I can't see on facebook though others can. I have checked with my Kaspesky security and it isn't that, I also checked with java script and I have the most up to date and didn't even have any old versions, also have auto update for windows so I know it's not that, help