On a family members computer running Windows 7 when using firefox (most recent version) any time a video is played on either facebook or various news websites like fox news or cnn the video just shows up white while the sound is still playing. Additionally, players like the watch instant player on netflix wont allow pausing, the button to pause simply does not work. I have re-installed drivers, emptied the cache, turned on and off hardware acceleration on flash, various solutions found around the web. I'm at a loss, any suggestions would be greatly appreciated!