YouTube displaying a green bar across the top? Earlier today, I rebooted my PC and after logon I was presented with an Adobe Flash update, which I ran and then forgot about it.  This evening whilst catching up on the various highlights (I use the term loosely) of Saturday TV, I noticed my videos regardless of source all had a green bar across the top. I am not sure what the new version of flash has done to my computer but to resolve the issue I had to disable hardware acceleration. well it works, but wont it cause another problem, like lack of smoothness in the movie's movement and such? I did that to solve the problem and ever since I've been having the feelings clips move more 'chunkily', less smoothly from frame to frame.