I dont know if its my mac or just the internet im using..I have a macbook, and its pretty new. I downloaded firefox onto it and use that as my main browser. But sometimes when i got on youtube and facebook, all the graphics etc come out all great, and then sometimes when i re-open the page, its like there aren't graphics at all. With all the pages i open, not just facebook and youtube, like for youtube, no videos would come out, it would just have the links and stuff on a blank white page, the links would be underlined and blue, and when i click on that, it takes me to a page just like it. its almost like all the text on a blank white screen. When i restart my computer, everythings fine, its just been happening lately. could it be the mac? or the internet browser? (it does the same for safari and firefox). What should i do?