Hello, I have tried Googling this and checking the Youtube forums (or whatever they are) and I couldn't find very much at all. Anyway the problem is ever since I updated Flash Player maybe 3 or 4 weeks ago (this is before two additional updates that I hoped would fix this problem) I have a problem with the videos on Youtube when scrolling with the mouse or keyboard and even the scroll bar. What happens is, if the video itself doesn't fill the entire player size and has black margins on either side then the video gets all messed up. It's difficult to explain and that's probably why I have had a hard time finding any results using Google. Fortunately I have found one result that show this problem and I am certainly not the only one experiencing it. It is a video and it's on Youtube... Firefox Youtube mouse scrolling issue. If anyone else here is experiencing this or if it has been mentioned before and someone knows how to sort it I'd appreciate it. Thanks.