I'm having an issue with Flash Player on Firefox 5 that I haven't seen before. Videos play fine but the controls blink repeatedly. For example on youtube while the video is playing, the volume control and play button either blink or turn into a grey box. Also happen in Hulu.com, when looking at the video marquee the area where the font is supposed to be there is a grey box. I am running Flash Player 10,3,181,34 This is only happening in Firefox 5 on an Ubuntu 11.04/Linux OS 64bit It does not occur in Chrome or Opera