This seems to be a resize issue. If u resize the website (ctrl+mouse wheel) the flash video moves differently than rest of youtube (only if u had the World of Tanks ad). if u havent resized youtube, the world of tanks ad does nothing. To fix the issue: ctrl+ mouse wheel till the flash player connects with the youtube frame. I still hope google fixes this since its caused only by the world of tanks ad. The flash player moving offscreen also happened on streams with world of tanks ad, not just on youtube. If they dont read this topic anymore, someone please pass this information to google cause im too lazy.